Preclinical Molecular Imaging Contents

Total Page:16

File Type:pdf, Size:1020Kb

Preclinical Molecular Imaging Contents Department of Radiology · University of Tübingen Preclinical Molecular Imaging www.preclinicalimaging.org contents OUR MISSION 02 01 Non-invasive Small Animal Imaging – A New Approach in Biomedical Research 02 From Mouse to Man – from the Laboratory Bench to the Patient’s Bedside! 03 LABORATORY FOR PRECLINICAL IMAGING AND IMAGING 02 TECHNOLOGY OF THE WERNER SIEMENSFOUNDATION 04 Preclinical Imaging in Tübingen 04 Development of Funds and Human Resources 05 COOPERATIONS 06 03 Cooperation with Industry 06 Academic Cooperations 07 Partners in Tübingen 07 External Partners 07 INFRASTRUCTURE 08 04 Imaging Equipment 08 Animal Holding and Hygiene Concept 09 Image Analysis 09 Surgical Interventions 09 Physiological Monitoring 10 Translational Imaging 10 Radiopharmacy Unit 10 Our Technological Development Pioneers Molecular Imaging 11 In Vivo meets In Vitro 11 PROJECT EXAMPLES 12 05 Project Management and Study Workfl ow 12 Neurooncology & Neurodegeneration 13 Oncology 15 Imaging in Immunology 17 REFERENCES 18 06 References and Affi liations 18 Workshop for Small Animal Imaging 18 Example of Established Animal Models 19 Recent Important Publications 20 LOCATION 22 07 Scientifi c Environment & Culture 22 How to reach us 24 Contact Information 25 01 OUR MISSION non-invasive small animal imaging – a new approach in biomedical research Small animal imaging is an emerging fi eld which has an im- pact on various biomedical research areas such as neurology, oncology, cardiology, immunology and infection biology. Non-invasive imaging methods, such as magnetic resonance imaging (MRI) or positron emission tomography (PET) allow the direct in vivo quantifi cation of functional processes or metabolic rates in animal models using target or disease- specifi c biomarkers. Thus, imaging can replace time consum- ing and less reliable ex vivo and in vitro methods in many areas of biomedical science. The pharmaceutical industry will profi t from these tools as they accelerate drug and biomarker development by yielding more reliable in vivo results and cost-effective study designs, while at the same time smaller animal numbers are required. Consequently, the pharmaceutical industry can get its prod- ucts onto the market faster and impact positively on animal protection. Professor Dr. Bernd Pichler Chair Preclinical Imaging and Radiopharmacy 02 | OUR MISSION from mouse to man – from the laboratory bench to the patient’s bedside! The mission of the Laboratory for Preclinical Imaging and Imaging Technology of the Werner Siemens-Foundation is to bridge the gap between in vitro biomedical research and in vivo imaging. This endeavour is achieved by developing no- vel imaging technologies and by using innovative imaging probes and animal models to gain information about phy- siology and pathology in vivo. A close association with the University Hospital (UKT) enables translational research and early clinical studies and ensures a fast transition of know- how from the research laboratory to the patient’s beds. | 03 02 LABORATORY FOR PRECLINICAL IMAGING AND IMAGING TECHNOLOGY OF THE WERNER SIEMENS-FOUNDATION preclinical imaging in tübingen The Laboratory for Preclinical Imaging and Imaging Technol- ogy in Tübingen was established in 2005, when Dr. Pichler returned to Germany from the University of California, Davis, USA. With over ten years experience in small animal imaging, Professor Pichler has established a highly motivated, skilled team of biologists, physicists, chemists, physicians, technical assistants and lab managers. The lab utilises the latest technological infrastructure and sets the highest standards in hygiene, animal welfare and physiological monitoring of animals. A large number of es- tablished imaging protocols, standard operating procedures (SOPs), and data analysis tools guarantee reliable scientifi c results. The affi liated radiopharmacy unit supplies the tracers, ensur- ing the fl exibility for innovative research projects. The Laboratory for Preclinical Imaging and Imaging Technology of the Werner Siemens-Foundation is hosted within the newly founded Department of Preclinical Imaging and Radiophar- macy (Chair: Professor Pichler), one of the fi ve Departments within Radiology of the University Hospital of Tübingen. Overall, the laboratory is committed to maintaining the high- est standards in non-invasive small animal imaging. 04 | LABORATORY development of funds and human resources Since Prof. Bernd Pichler became head of the newly founded laboratory in 2005, it has developed from a small laboratory into a state-of-the-art facility for preclinical imaging. Our success is demonstrated by a steady increase in the number of publi- cations and the quality of the journals in which publications are being placed as well as the amount of funds raised and the growth and development of personnel. Funds raised in � (Million)* Personnel development 3.0 18 2.5 16 14 2.0 12 1.5 10 8 1.0 6 4 0.5 PhD students s PostdocsPostdoc 2 Technicianechnicians/Engineers/ s 0.0 0 AAdministratiodministration 2005 2006 2007200820092010 200200005 2006 2007 2008 2009 20201010 *status June 2010 | 05 03 COOPERATIONS cooperations with industry The laboratory is an academic facility of the Medical Faculty at the University of Tübingen which has several years of ex- perience in contractual research with pharmaceutical compa- nies. Our benefi ts from these cooperations are threefold: • Close links with pharmaceutical companies widen our sci- entifi c spectrum by opening up new research strategies and provide access to novel diagnostic medical and thera- peutic drugs. • Our researchers are exposed to the scientifi c work envi- ronment of companies, an important experience to foster their professional careers. • Finally, contractual research can lead to joint publications or, if the sponsor requires confi dentiality, to fi nancial sup- port giving us more fl exibility for our research by main- taining a good laboratory infrastructure and suffi cient manpower. The Laboratory for Preclincal Imaging is hosted within the Currently our laboratory maintains collaborative research Department of Radiology of the University Hospital of Tübin- with more than six major national and international phar- gen. This means: maceutical companies. i) Results from basic research can be transferred to clinical validation on a shortcut to Diagnostic Radiology, Nuclear Medicine, Neuroradiology, Internal Medicine or Radiation Oncology, to name just a few. ii) A specifi c care unit for medical trial volunteers allows tight supervision of study parameters. iii) The laboratory is backed by the University Hospital’s pro- fessional administration. 06 | COOPERATIONS academic cooperations partners in tübingen external partners • Institute of Medical Microbiology and Hygiene • Max Planck Institute for Biological Cybernetics, (Prof. Autenrieth) Tübingen, Germany • Department of Radiation Oncology (Prof. Bamberg) • University of Münster, Germany • Department of Nuclear Medicine (Prof. Bares) • University Hospital Heidelberg, Germany • Department of Diagnostic and Interventional Radiology • University of Freiburg, Germany (Prof. Claussen) • Technische Universität München, Germany • Department of Diagnostic and Interventional • University of Erlangen-Nürnberg, Germany Neuroradiology (Prof. Ernemann) • University of Mannheim, Germany • Core Laboratory for Mouse Pathology (Prof. Fend) • University of Magdeburg, Germany • Department of Cardiology and Cardiovascular Medicine (Prof. Gawaz) • Swiss Federal Institute of Technology Zurich, Switzerland • University Children’s Hospital (Prof. Handgretinger) • Dr. Margarete Fischer-Bosch-Institut für Klinische Pharmakologie (IKP), Stuttgart, Germany • Department of General, Visceral and Transplant Surgery (Prof. Königsrainer) • Max Planck Institute for Physics, Munich, Germany • Department of Tropical Medicine (Prof. Kremsner) • University of California, Davis, USA • Department of Molecular Biology (Prof. Nordheim) • Stanford University, California, USA • Department of Immunology (Prof. Rammensee) • Universität Innsbruck, Austria • Microarray Facility (Prof. Rieß) • Paul Scherer Institute, Villigen, Switzerland • Department of Dermatology (Prof. Röcken) • Eindhoven University of Technology, Netherlands • Interfaculty Institute for Biochemistry • University of British Columbia, Canada (Prof. Feil, Prof. Schulze-Osthoff) • Department of Urology (Prof. Stenzl) • Department of Toxicology (Prof. Schwarz) | 07 04 INFRASTRUCTURE imaging equipment The laboratory offers 245m2 of restricted imaging and animal holding area with elevated hygiene. This entire sector is equipped with the latest air conditioning technology and HEPA fi lters. Personnel enter the restricted area in clean room wear through an air shower. The laboratory has been approved for bio safety level 2 (S2) work and as a radiation area, enabling the use of all major open radioactive isotopes for PET and SPECT imaging. The entire division consists of 350m2 lab space and 207m2 offi ce space. EQUIPMENT OVERVIEW • 2x Inveon dedicated PET scanners (Siemens) • 1x Inveon SPECT/CT (Siemens) • 1x µCT (Siemens) • 1x 7 Tesla MRI – ClinScan (Bruker) • Optical Imaging System (Hamamatsu) • Human PET/MR • Animal PET/MR 08 | INFRASTRUCTURE animal holding and hygiene concept Our newly built and extended animal imaging facility is run at an elevated hygiene status. The animal holding facilities utilize isolated ventilated cages (IVC) and are integrated within the animal imaging unit. To maintain a high hygiene status and avoid
Recommended publications
  • In Vivo Preclinical Imaging Layout 1 23/06/2011 14:05 Page 58
    In vivo preclinical imaging_Layout 1 23/06/2011 14:05 Page 58 Imaging IN VIVO PRECLINICAL IMAGING an essential tool in translational research By Dr John Comley In vivo imaging of small animals (mainly mice) is increasingly being deployed across the drug development process, particularly in the oncology/cancer therapeutic area. One of the main applications is monitoring the treatment response for early indications of efficacy. The most used imaging modalities are currently optical (bioluminescence and fluorescence), magnetic resonance imaging (MRI) and positron emission tomography (PET). Single modality imaging predominates, with multi-modality currently accessed mainly through co- registration with other imaging modes. The most used imaging combination today is PET+CT (x-ray computed tomography). In vivo imaging is expected to have greatest impact in drug development through monitoring disease progression and therapeutic response in longitudinal studies. Bioluminescent markers/reporters (eg luciferins, proluciferins) and PET Tracers (eg Fluorine-18 based) were the most used reagents in imaging studies. Maximising the depth of tissue penetration is perceived as the main limitation associated with optical imaging. From vendor updates it is possible to make some general observations: more compact benchtop imaging systems are being developed to promote accessibility; multi-modality imaging combinations are increasingly being offered: higher spatial resolution imaging is expected to be realised on new imagers: a broader range of imaging and contrasting reagents is under development; imaging systems are heavily reliant on advanced software systems and algorithms for reconstruction of the 3D image and co-registration of multiple imaging modalities; and finally the industry as a whole appears to be focusing on translational research applications.
    [Show full text]
  • A System for Preclinical Imaging Facility Management and Data Processing Ryan Anthony Bozio Grand Valley State University
    Grand Valley State University ScholarWorks@GVSU Masters Theses Graduate Research and Creative Practice 4-2013 A System for Preclinical Imaging Facility Management and Data Processing Ryan Anthony Bozio Grand Valley State University Follow this and additional works at: http://scholarworks.gvsu.edu/theses Recommended Citation Bozio, Ryan Anthony, "A System for Preclinical Imaging Facility Management and Data Processing" (2013). Masters Theses. 50. http://scholarworks.gvsu.edu/theses/50 This Thesis is brought to you for free and open access by the Graduate Research and Creative Practice at ScholarWorks@GVSU. It has been accepted for inclusion in Masters Theses by an authorized administrator of ScholarWorks@GVSU. For more information, please contact [email protected]. A System for Preclinical Imaging Facility Management and Data Processing Ryan Anthony Bozio A Thesis Submitted to the Graduate Faculty of GRAND VALLEY STATE UNIVERSITY In Partial Fulfillment of the Requirements For the Degree of Master of Science in Engineering Padnos College of Engineering and Computing April 2013 Acknowledgment I would like to thank Dr. Samhita Rhodes for recruiting me into the biomedical engineering program at Grand Valley State University. I would like to the thank Dr. Anthony Chang for pushing my limits and setting such high standards for my work. I would also like to thank all of my friends and family who have supported me throughout this entire process. I truly could not have done it without them. This project is funded under the National Science Foundation American Recovery and Reinvestment Act of 2009 (ARRA) (Public Law 111-5). 3 Abstract Introduction: Preclinical imaging laboratories are unique and specialized facilities that generally operate as service cores within large research institutions.
    [Show full text]
  • Preclinical Imaging and Its Importance in Drug Discovery and Development
    Imaging Systems Preclinical Imaging and its Importance in Drug Discovery and Development By Alexandra De Lille Advances in non-invasive, in vivo imaging techniques have raised the use at Caliper Life Sciences of animal models in preclinical R&D to a new level, enabling the underlying biological processes of disease to be revealed and the effects of therapeutic intervention to be monitored. During the preclinical stage of Molecular imaging utilises highly settings, both bioluminescence and research in drug discovery and specific probes and gene reporters fluorescencein vivo imaging are the development, in vitro and in vivo tests to monitor gene expression, most established modalities in the are conducted to ensure safe testing tumour growth and metastasis, preclinical environment. They are in humans prior to the initiation of bacterial and viral infections, relatively inexpensive, yet highly clinical trials. Preclinical research cell homing, and biomarker and sensitive technologies with a flexible employs animal models to facilitate compound biodistribution. The toolbox of reporters and disease- the investigation of human disease hand-in-hand development of specific, targeting probes. and to aid in the development of molecular imaging instrumentation, treatment. The biological relevance transgenic animal models, cells Non-invasive imaging enables the of an animal model is critical to the and probes facilitate this dynamic same animal to be followed over predictive value of clinical outcome. interrogation of molecular pathways time. This principle of longitudinal The recent development of non- in vivo. Therefore, the application studies increases the statistical invasive, in vivo imaging techniques of molecular imaging is key in power of the model significantly, has vastly advanced the sophistication revealing the underlying biological since each animal serves as its of animal models.
    [Show full text]
  • Magnetic Resonance Imaging for Translational Research in Oncology
    Journal of Clinical Medicine Review Magnetic Resonance Imaging for Translational Research in Oncology Maria Felicia Fiordelisi , Carlo Cavaliere , Luigi Auletta * , Luca Basso and Marco Salvatore IRCCS SDN, Via Gianturco 113, 80143 Napoli, Italy; mfi[email protected] (M.F.F.); [email protected] (C.C.); [email protected] (L.B.); direzionescientifi[email protected] (M.S.) * Correspondence: [email protected] Received: 1 October 2019; Accepted: 29 October 2019; Published: 6 November 2019 Abstract: The translation of results from the preclinical to the clinical setting is often anything other than straightforward. Indeed, ideas and even very intriguing results obtained at all levels of preclinical research, i.e., in vitro, on animal models, or even in clinical trials, often require much effort to validate, and sometimes, even useful data are lost or are demonstrated to be inapplicable in the clinic. In vivo, small-animal, preclinical imaging uses almost the same technologies in terms of hardware and software settings as for human patients, and hence, might result in a more rapid translation. In this perspective, magnetic resonance imaging might be the most translatable technique, since only in rare cases does it require the use of contrast agents, and when not, sequences developed in the lab can be readily applied to patients, thanks to their non-invasiveness. The wide range of sequences can give much useful information on the anatomy and pathophysiology of oncologic lesions in different body districts. This review aims to underline the versatility of this imaging technique and its various approaches, reporting the latest preclinical studies on thyroid, breast, and prostate cancers, both on small laboratory animals and on human patients, according to our previous and ongoing research lines.
    [Show full text]
  • Evaluation of Physical Image Quality of the Preclinical Scanner IRIS CT Using Conventional and Nanoparticle-Based Contrast Agents
    Universit`adi Pisa FACOLTA` DI SCIENZE MATEMATICHE, FISICHE E NATURALI Corso di Laurea Magistrale in Fisica Tesi di Laurea Magistrale Evaluation of physical image quality of the preclinical scanner IRIS CT using conventional and nanoparticle-based contrast agents Candidato: Relatore: Antonella STASI Prof. Daniele PANETTA Anno Accademico 2015-2016 A me stessa Acknowledgements “Non è il suo moto per altro distinto ma li altri son mensurati da questo.” (La Divina Commedia - Paradiso: C. XXVII, v.115-116) Con questi versi vorrei cominciare dal principio, dal mio primo mobile, perché la sua tenacia e passione per il suo lavoro hanno impresso il moto a tutti gli altri “cieli”, por- tandomi fin qui. Grazie per i tuoi quotidiani sacrifici e per la fiducia che mi hai sempre dimostrato. Grazie alla donna più importante, l’Atlante della famiglia, che da lontano mi è sempre stata vicino, incoraggiandomi nei giorni di malumore e rallegrandosi con me in quelli più gioiosi. Grazie al Sale&Pepe delle mie giornate e luce di tutte le mie sere, diario segreto al quale ho sempre confidato le mie paure, le mie gioie, e le mie speranze. Grazie per la tua immensa pazienza e per il tuo amore che mi ha quotidianamente accompagnato in questa esperienza. Grazie ad un amico (gian)prezioso, sempre contento di assistere ai miei, a volte insensati, sfoghi. Grazie per la tua accoglienza, hai fatto di una caserma il posto in cui ho sempre trovato serenità, il ritrovo domenicale di un gruppo pazzo e assurdo senza il quale Pisa non sarebbe stata la stessa. Grazie anche al capriccio di ogni riccio che si è sempre preoccupato per i miei stati d’animo ballerini.
    [Show full text]
  • Preclinical Imaging
    Preclinical Imaging Positron Emission Tomography (PET) and Single Photon Emission Computed Tomography (SPECT) imaging techniques help to discern biological processes at the cellular and molecular levels within an individual over time. PET and SPECT imaging can provide novel insights on fundamental biological principles, disease processes, and monitoring the effects of new therapies by imaging radioisotope distribution within a specimen. ANSTO Biosciences operates multimodality preclinical imaging systems designed for small animal (rat or mouse) applications: PET/CT systems and a SPECT/CT system. Each of these can be applied on their own or in combination Figure 1: Left - Shows PET/CT study full pipeline right from with the other modalities, the most common imaging acquisition, image reconstruction to kinetic modelling being PET/CT, SPECT/CT, CT, or to the parametric map. Mid - An example of SPECT/CT image of 99mTc-sestamibi drug clearance study in mouse for 20mins PET/SPECT/CT. to 3hrs time points. Right - Examples of PET/CT images in various preclinical models. PET/CT Imaging one or more detector heads 360º around a Preclinical PET is increasingly used to assess efficacy subject in order to detect the photon (gamma ray) of therapeutic interventions and to validate the emission from an injected radioisotope and application of both current and novel radiotracers for determine its location in 3D space. The translation to humans. It is highly sensitive technique movement of detectors around the subject means and provides true 4D dynamic imaging (space and there is a minimal rotation time to get a 3D time). Image acquisition parameters can be tailored to snapshot of the emission profile of the visualize tracer distribution at a specific time point and radiotracer.
    [Show full text]
  • Pre-Clinical Imaging
    Pre-clinical Imaging Roger Lecomte, Ph.D. Lecture 1: Thursday July 26, 2018, 9:15 Department of Nuclear R. Lecomte − Ohrid 2018 Workshop − July 25-28, 2018 Medicine & Radiobiology 1 Duality of Interest Statement IR&T Inc. – Co-founder & CSO Research contracts: Charles River, Bayer, Biogen R. Lecomte − Ohrid 2018 Workshop − July 25-28, 2018 2 Outline • Preclinical Imaging − Morphological/anatomical − Molecular imaging • Modalities − Overview (US, MRI, optical) − µCT − µSPECT − µPET • Applications − Multimodality imaging R. Lecomte − Ohrid 2018 Workshop − July 25-28, 2018 3 Why Small Animal Imaging ? • The rat and mouse host a large number of human diseases ∗ Opportunity to study disease progression / therapeutic response under controlled conditions non-invasively in same animal repetitively • Powerful tool for research into molecular pathways and biomarker identification ∗ Molecular targets, receptors & drug binding sites ∗ Relationship between genes ↔ phenotype ∗ Gene expression & gene therapy assessment • Bridge between in vitro / in vivo animal studies and Phase I trials ∗ PK/PD, ADME(T) ∗ Study of site, specificity, mechanism of action of new pharmaceuticals * Preclinical study of dose regimen, toxicity,… → faster screening of lead compounds (< time) → earlier decisions about compound’s suitability (< cost ) → smaller number of animals R. Lecomte − Ohrid 2018 Workshop − July 25-28, 2018 4 Preclinical Imaging In vivo Non-invasive Allows longitudinal follow up studies in same animal Primarily anatomical Primarily molecular Ultrasound (US) Optical (fluorescence, bioluminescence) Magnetic resonance (MRI) Single Photon Emission Computed Computed tomography (CT) Tomography (SPECT) Positron Emission Tomography (PET) R. Lecomte − Ohrid 2018 Workshop − July 25-28, 2018 5 The Challenge of Preclinical Imaging Na 18 F Bone Scans ×××1/300 ×××1/10 75 kg human 200 g rat 20 g mouse Clinical PET scanner Preclinical PET scanner Mouse PET scanner (5-6 mm or ~1 cc) (1.3 mm or ~2 µl) (0.8 mm or ~0.5 µl) R.
    [Show full text]
  • Digital PET/MRI Inserts for Preclinical Applications
    “Digital PET/MRI for Preclinical Applications” Von der Fakultät für Mathematik, Informatik und Naturwissenschaften der RWTH Aachen University zur Erlangung des akademischen Grades eines Doktors der Ingenieurwissenschaften genehmigte Dissertation vorgelegt von Dipl.-Ing. Björn Christian Weißler aus Wilhelmshaven Berichter: Univ.-Prof. Dr.-Ing. Volkmar Schulz Univ.-Prof. Dr. rer. nat. Achim Stahl Univ.-Prof. Dr.-Ing. Dirk Heberling Tag der mündlichen Prüfung: 25.04.2016 Diese Dissertation ist auf den Internetseiten der Universitätsbibliothek online verfügbar. Feedback “Let me just share that I really enjoy seeing this progress! I have followed over the 1.5 year the evolution of this project, which is/was not an easy one. I appreciate the persistence, entrepreneurship and innovation competence at work here by all involved.” François Adrianus "Frans" van Houten, CEO of Royal Philips Electronics. Comment after the presentation on the IEEE NSS/MIC conference (Weissler et al., 2012a). “… it’s a research system that gave spectacular pre-clinical results.” Homer Pien, Senior VP and CTO of Philips Healthcare Comment about the publication in IEEE TMI (Weissler et al., 2015a) “Pretty impressive video and outcome of this project. Congratulations to Björn and the entire team for the great work.” Rene Botnar, Professor of Cardiovascular Imaging at King’ College London Comment about the publication in IEEE TMI (Weissler et al., 2015a) “We were impressed by the performance of the pre-clinical insert technology.” Kees van Kuijk, Head of the Radiology Department at the VU University Medical Center Amsterdam Written statement after a presentation of the results of (Weissler et al., 2015a) Table of Contents 3 Table of Contents 1.
    [Show full text]
  • Cyclotron Produced Radionuclides
    f f f IAEAIAEA RADIOISOTOPESRADIOISOTOPES ANDAND RADIOPHARMACEUTICALSRADIOPHARMACEUTICALS REPORTSREPORTS No.No. 12 Cyclotron BasedProduced Production Radionuclides: of Technetium-99mEmerging Positron Emitters for Medical Applications: 64Cu and 124I Atoms for Peace Atoms for Peace IAEA RADIOISOTOPES AND RADIOPHARMACEUTICALS SERIES PUBLICATIONS One of the main objectives of the IAEA Radioisotope Production and Radiation Technology programme is to enhance the expertise and capability of IAEA Member States in deploying emerging radioisotope products and generators for medical and industrial applications in order to meet national needs as well as to assimilate new developments in radiopharmaceuticals for diagnostic and therapeutic applications. This will ensure local availability of these applications within a framework of quality assurance. Publications in the IAEA Radioisotopes and Radiopharmaceuticals Series provide information in the areas of: reactor and accelerator produced radioisotopes, generators and sealed sources development/production for medical and industrial uses; radiopharmaceutical sciences, including radiochemistry, radiotracer development, production methods and quality assurance/ quality control (QA/QC). The publications have a broad readership and are aimed at meeting the needs of scientists, engineers, researchers, teachers and students, laboratory professionals, and instructors. International experts assist the IAEA Secretariat in drafting and reviewing these publications. Some of the publications in this series may also
    [Show full text]
  • First Preclinical Imaging of Primary Cartilage Neoplasm and Its Local Recurrence Using 99Mtc-NTP 15-5 Radiotracer
    First Preclinical Imaging of Primary Cartilage Neoplasm and Its Local Recurrence Using 99mTc-NTP 15-5 Radiotracer Elisabeth Miot-Noirault1, Francxois Gouin2, Aurelien´ Vidal1, Maryse Rapp1, Jean Maublant1, Serge Askienazy3, Jean-Michel Chezal1, Dominique Heymann2, Francxoise Redini2, and Nicole Moins1 1EA 4231, Universite´ d’Auvergne, INSERM UMR 484, and Centre Jean Perrin, Clermont-Ferrand, France; 2INSERM UMR S957 EA3822, Universite´ de Nantes, Nantes, France; and 3Cyclopharma Laboratoires, Saint Beauzire, France This study on a rat model of grade II chondrosarcoma aimed to determine whether the radiotracer N-(triethylammonium)-3-pro- hondrosarcomas are a heterogeneous group of slow- 99m 99m C pyl-[15]ane-N5 radiolabeled with Tc ( Tc-NTP 15-5), which growing, malignant bone tumors that have in common the binds to cartilage proteoglycans, has pathophysiologic validity for in vivo imaging of cartilage tumoral tissue. Methods: We production of a hyaline cartilagelike extracellular matrix used 2 experimental approaches with the Swarm chondrosar- (1). Chondrosarcoma is the second most common type of coma rat model: that is, a primary paratibial location and local skeletal malignancy, with a survival rate at 10 y ranging recurrence after intralesional curettage. 99mTc-NTP 15-5 scintig- from 46% to 70% depending on the series (2–4). To raphy and 99mTc-hydroxymethylenediphosphonate (99mTc- orthopedic oncologists, cartilage tumors still present a HMDP) scanning were performed at regular intervals during 50 d challenge in diagnosis and therapy (3–6). Evaluation of the after tumor implantation in a paratibial location (primary model; disease combines clinical picture, radiography, CT, MRI, n 5 12 animals) and after intralesional curettage in a femoral con- dyle location (recurrence model; n 5 9 animals).
    [Show full text]
  • Preclinical Imaging
    Edinburgh Imaging Academy – online distance learning courses Preclinical Imaging Semester 1 / Autumn 10 Credits Each Course is composed of Modules & Activities. Modules: Introduction to Preclinical Imaging IMSc Legislation and ethics governing the use of animals in research IMSc in the UK Practical considerations of preclinical MR imaging IMSc Preclinical MR case studies IMSc Practical considerations of Preclinical Ultrasound IMSc Preclinical US case study IMSc Practical considerations of Preclinical optical techniques IMSc Practical considerations of Preclinical PET imaging IMSc Experimental imaging IMSc Zebrafish as an animal model IMSc Each Module is composed of Lectures, Reading Lists, MCQ self-assessments, & Discussion Boards. The summary table above shows whether the modules are available in the Neuroimaging for Research (NI4R) programme or the Imaging (IMSc) programme or indeed both. Edinburgh Imaging Academy – online distance learning courses Modules are: Introduction to Preclinical Imaging: Preclinical imaging - introduction Legislation and ethics governing the use of animals in research in the UK: Animals in Research – Moral and ethical considerations Animals in Research – UK legislation Practical considerations of preclinical MR imaging: Practicalities of Preclinical MRI Preclinical cardiac MRI Preclinical MR case studies: Assessment of myocardial viability using 23Na MRI Conscious rodent fMRI Imaging the healing murine myocardial infarction: ultrasound, MRI and near-infrared fluorescence Practical considerations of Preclinical
    [Show full text]
  • Small-Animal PET: What Is It, and Why Do We Need It?*
    Small-Animal PET: What Is It, and Why Do We Need It?* Rutao Yao1, Roger Lecomte2, and Elpida S. Crawford1 1Department of Nuclear Medicine, State University of New York at Buffalo, Buffalo, New York; and 2Department of Nuclear Medicine and Radiobiology, Universite´ de Sherbrooke, Sherbrooke, Quebec, Canada jects, a small-animal PET system has a detector gantry that Small-animal PET refers to imaging of animals such as rats and is only a fraction the size of one in a human PET scanner. mice using dedicated PET scanners. Small-animal PET has For example, typical small-animal PET systems have a de- been used extensively in modern biomedical research. It tector ring diameter of approximately 150 mm (6 in), as provides a quantitative measure of the 3-dimensional distribu- compared with approximately 800 mm (31 in) for human tion of a radiopharmaceutical administered to a live subject noninvasively. In this article, we will discuss the operational and PET systems. The smaller detector ring is advantageous in technical aspects of small-animal PET; make some compar- that it saves detector cost and also improves the geometric isons between small-animal PET and human PET systems; detection efficiency of the system. This is another reason identify the challenges of, opportunities for, and ultimate that micro is part of the name of the Siemens system. In limitations in applying small-animal PET; and discuss some fact, it has become a convention that when micro is used as representative small-animal PET applications. Education objec- a prefix to an imaging modality, such as micro-CT and tives: After reading this article, the technologist will be able to micro-MRI, it indicates small-animal imaging.
    [Show full text]