dr walif chbeir radiology walif chbeir medicine medical imaging health diagnosis pno pneumothorax medical healthcare walif chbeir radiology notes mri figures classification of stenosis brain doppler ultrasound ultrasonography arteries of lower extremeties normal labral variants anne kennedy lissencephaly blaise v. jones pachygyria polymicrogyria hyperacute stroke acute acute stroke stroke t2*gre adc t2wi t1wi t1gadolinium brain infarction radiology notes flair brain hemmorrhage dwi brain ischemia velocity ratio peak systolic velocity grading stenosis grading of carotid artery stenosis benson c b grant e g carotid artery moneta g l osseous avulsion from fibula posterolateral corner of knee edema arcuate sign arcuate complex ligaments popliteus tendon cerebral cavernous malformation images medical papers imaging xray lungs collapsed lung pneumothroax radioloy rumack gestational age echography fetal measurements carol b.benson obstetric big data abi ankle-brachial pressure index toe-brachial index postexercise abi toe-brachial pressure index duplex doppler sonography doppler sonography scanning technique ultrasound contrast agent normal laminar flow pulse repetition frequency scale color doppler sonography interpretation and reporting real-time gray-scale imaging power doppler sonography stenosis doppler of lower limb arteries screening test ankle-brachial index peripheral arterial disease toe-brchial index cardiovascular risk treadmill testing risk factors labrum labral
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