Table of Contents PLATFORM SESSION I | THURSDAY, NOVEMBER 21ST, 2019 | 11:00 AM – 12:00 PM ............................................ 7 MOBILE STROKE UNIT CTA AND DIRECT NOTIFICATION OF INTERVENTIONAL TEAM SHORTENS DOOR-TO-PUNCTURE-TIME BY ONE HOUR .......................................................................................................................................................................... 7 STROKE AND LVO DETECTION USING AI FROM FACIAL ANALYSIS: A CROSS-CENTER STUDY ............................................................ 9 MACHINE LEARNING IDENTIFICATION OF LARGE VESSEL OCCLUSION (LVO) ON NON-CONTRAST COMPUTED TOMOGRAPHY (NCCT) . 10 IMPACT OF TIME AND ASPECTS ON CLINICAL CORE MISMATCH IN LARGE VESSEL OCCLUSION STROKES ...................................... 11 PATIENT SELECTION FOR THROMBECTOMY WITH CT VERSUS CT PERFUSION IN THE EARLY TIME-WINDOW: A META-ANALYSIS ........ 12 FIRST PASS EFFECT IN THE ANTERIOR AND POSTERIOR CIRCULATION: INSIGHTS FROM THE TREVO REGISTRY ................................... 14 PLATFORM SESSION II | FRIDAY, NOVEMBER 22ND, 2019 | 11:00 AM – 12:00 PM .............................................. 15 ACUTE SUBDURAL HEMATOMAS SECONDARY TO ANEURYSMAL SUBARACHNOID HEMORRHAGE CONFER POOR PROGNOSIS- A NATIONAL PERSPECTIVE. ............................................................................................................................................................... 15 SURPASS™ FLOW DIVERTER TRIAL TREATING LARGE OR GIANT WIDE NECK ANEURYSMS: POSTERIOR COMMUNICATING ARTERY ANEURYSM ................................................................................................................................................................. 16 CYCLICAL ASPIRATION HAS AN IMPROVED SAFETY PROFILE COMPARED TO CONTINUOUS UNIFORM ASPIRATION: IN-VIVO RANDOMIZED STUDY ........................................................................................................................................................................ 17 THE CLINICAL IMPACT OF ELOQUENT CORTEX-TISSUE REPERFUSION BEYOND THE TRADITIONAL TICI SCORING AFTER THROMBECTOMY . 18 E-ASPECTS CT ISCHEMIC VOLUME PERFORMS SIMILARLY TO CTP IN THE PREDICTION OF POST-REPERFUSION INFARCT VOLUME .... 20 MECHANICAL THROMBECTOMY WITH PENUMBRA 3D REVASCULARIZATION DEVICE FOR ACUTE STROKE: INTERIM ANALYSIS OF COMPLETE REGISTRY ................................................................................................................................................. 21 E-POSTER PRESENTATIONS | THURSDAY, NOVEMBER 21, 2019 | 10:15 AM – 11:00 AM ..................................... 22 A PHASE III TRIAL TO ASSESS TENECTEPLASE IN IMAGING-ELIGIBLE, LATE-WINDOW PATIENTS WITH ACUTE ISCHEMIC STROKE ......... 22 RELATION BETWEEN BRAIN NATREURETIC PEPTIDE AND DELAYED CEREBRAL ISCHEMIA IN PATIENTS WITH ANEURYSMAL SUBARACHNOID HEMORRHAGE ............................................................................................................................................................. 24 ATLAS™ STENT ASSISTED ANTERIOR CIRCULATION ANEURYSM COILING: ONE YEAR OUTCOMES ................................................. 25 EFFECTIVENESS AND SAFETY PROFILE OF THE COMANECI DEVICE IN THE TREATMENT OF WIDE-NECKED INTRACRANIAL ANEURYSMS. 26 E-POSTER PRESENTATIONS | THURSDAY, NOVEMBER 21, 2019 | 3:30 PM – 4:00 PM .......................................... 27 SAFETY AND EFFICACY OF THE PENUMBRA SYSTEM .............................................................................................................. 27 MULTICENTER EXPERIENCE OF ADAPT WITH A NEW GENERATION LARGE BORE CATHETER FOR ACUTE STROKE THROMBECTOMY ..... 28 EFFECT OF GENERAL ANESTHESIA VERSUS CONSCIOUS SEDATION ON SUCCESSFUL REPERFUSION FOR DIFFERENT TARGET OCCLUSION LOCATIONS ................................................................................................................................................................. 29 IMPACT OF ADMISSION TIME ON REVASCULARIZATION AND CLINICAL OUTCOMES IN ARISE II .................................................... 30 FIRST PASS EFFECT RATES AND OUTCOMES WITH THE SOFIA PLUS CATHETER: A SINGLE CENTER EXPERIENCE ............................. 31 IMPACT OF TIME TO TREATMENT AND IMAGING MODALITY ON EARLY AND LATE WIDOW THROMBECTOMY OUTCOMES ................. 32 E-POSTER PRESENTATIONS | FRIDAY, NOVEMBER 22, 2019 | 3:30 PM – 4:00 PM ............................................... 34 LARGER BORE CATHETER SIZE DOES NOT ENHANCE REPERFUSION WITH THE COMBINATION THROMBECTOMY TECHNIQUE. ................. 34 IMPACT OF PROCEDURAL TECHNIQUES ON CLINICAL OUTCOMES IN TREATING LVOS WITH ENDOVASCULAR THERAPY ASSIST REGISTRY ................................................................................................................................................................................. 35 RESCUE STENTING IN FAILED THROMBECTOMY: BACK TO THE FUTURE? A MULTI-CENTER EXPERIENCE & SYSTEMIC REVIEW ............ 37 MECHANICAL THROMBECTOMY AS PART OF THE ARMENIAN STROKE INITIATIVE: A REVOLUTION OF NATIONAL HEALTHCARE ........... 38 E-POSTER PRESENTATIONS | SATURDAY, NOVEMBER 23, 2019 | 10:45 AM – 11:15 AM ..................................... 39 HYPERDENSE VESSEL SIGN MODIFIES THE TREATMENT RESPONSE TO STENT RETRIEVER VERSUS CONTACT ASPIRATION ................... 39 1 ENDOVASCULAR THERAPY VS MEDICAL MANAGEMENT FOR EMERGENT MEDIUM VESSEL OCCLUSION STROKES IN ANTERIOR CIRCULATION............................................................................................................................................................... 40 RECURRENT THROMBECTOMY IN PATIENTS WITH PRIOR MECHANICAL ENDOVASCULAR REVASCULARIZATION: MULTICENTER EXPERIENCE ................................................................................................................................................................ 42 BASELINE CHARACTERISTICS OF SYMPTOMATIC CAROTID WEBS: A CASE CONTROL STUDY.......................................................... 43 CLINICAL ABSTRACTS: PRIMARY CATEGORY - CASE REPORTS .............................................................................. 44 RARE CASE OF RAPIDLY RECURRENT BASILAR ARTERY THROMBOSIS TREATED WITH EMERGENT MECHANICAL THROMBECTOMIES AND STENTING .................................................................................................................................................................... 44 AUTOIMMUNE SYSTEMIC DISEASES PRESENTING AS STROKE MIMICS ..................................................................................... 45 ENDOVASCULAR MANAGEMENT OF AZYGOS ANTERIOR CEREBRAL ARTERY STROKE: A CASE REPORT ........................................... 46 UNUSUAL CASE OF SPONTANEOUS CAROTID ARTERY DISSECTION WITH CONCOMITANT EAGLE SYNDROME AND RAEDER SYNDROME . 47 A RARE DIAGNOSIS MADE BASED ON CLOT COMPOSITION ...................................................................................................... 48 A CASE OF MCA STROKE WITH VARIABLE DEGREE OF HYPERDENSE ARTERY SIGN IN CT SCAN ....................................................... 49 COMPLETE REVERSAL OF PERFUSION DEFICIT WITH MECHANICAL THROMBECTOMY: A CASE REPORT ......................................... 50 UNUSUAL PATTERN OF STROKE RELATED TO A PERSISTENT PRIMITIVE TRIGEMINAL ARTERY ........................................................ 51 PIPELINE WITHIN PIPELINE APPROACH FOR PERSISTENT ENLARGING ANEURYSM AND FAILED INITIAL INTERVENTION: A CASE REPORT52 THROMBECTOMY IN PATIENTS WITH ZERO NIHSS AND A DISTAL INTERNAL CAROTID ARTERY OCCLUSION: CASE REPORTS ............. 53 COMPOSITION OF RETRIEVED THROMBI IN ACUTE STROKE FROM CAROTID WEB ...................................................................... 54 ECMO CAUSING FALSELY POSITIVE CTA AND CTP .............................................................................................................. 55 ENDOVASCULAR REVASCULARIZATION OF CHRONIC TOTAL OCCLUSION OF THE INTERNAL CAROTID ARTERY: A CASE REPORT ............ 56 DELAYED THROMBECTOMY ............................................................................................................................................ 57 SUBOCCIPITAL CISTERNA MAGNA INTRATHECAL INJECTION FOR SPINAL MUSCULAR ATROPHY ( SMA )......................................... 58 RUPTURED SUPERIOR THYROID ARTERY PSEUDOANEURYSM TREATED SUCCESSFULLY WITH ONYX 18 (LES) .................................. 59 MYCOTIC ANEURYSM FORMATION IN A PATIENT WITH GRANULOMATOSIS WITH POLYANGIITIS AND ALZHEIMER’S DISEASE .............. 60 RESEARCH ABSTRACTS: PRIMARY CATEGORY – EMERGING THERAPIES ............................................................... 61 A-NOVEL APPROACH OF DETECTING CST-RECOVERY USING DTI-ANALYSIS, AFTER IA/MESENCHYMAL STEM/CELL INFUSION IN A CANINE STROKE-MODEL....................................................................................................................................... 61 CLINICAL ABSTRACTS: PRIMARY CATEGORY – EMERGING THERAPIES ................................................................. 62 LONG TERM OUTCOMES OF TRANSVERSE VENOUS SINUS STENTING FOR REFRACTORY IDIOPATHIC INTRACRANIAL HYPERTENSION. .... 62 SAFETY OF MIDDLE MENINGEAL ARTERY EMBOLIZATION WITH EMBOSPHERES (100-300 µM) ................................................... 63 MIDDLE MENINGEAL ARTERY EMBOLIZATION TECHNIQUE USING 100-300 ΜM EMBOSPHERES. ................................................. 64 RADIOGRAPHIC FINDINGS AFTER MIDDLE MENINGEAL ARTERY EMBOLIZATION. ......................................................................