Developmental venous anomalies: appearance on whole-brain CT digital subtraction angiography and CT perfusion.

Neuroradiology
E H HansonW W Orrison

Abstract

Developmental venous anomalies (DVA) consist of dilated intramedullary veins that converge into a large collecting vein. The appearance of these anomalies was evaluated on whole-brain computed tomography (CT) digital subtraction angiography (DSA) and CT perfusion (CTP) studies. CT data sets of ten anonymized patients were retrospectively analyzed. Five patients had evidence of DVA and five age- and sex-matched controls were without known neurovascular abnormalities. CT angiograms, CT arterial-venous views, 4-D CT DSA and CTP maps were acquired on a dynamic volume imaging protocol on a 320-detector row CT scanner. Whole-brain CTP parameters were evaluated for cerebral blood flow (CBF), cerebral blood volume (CBV), time to peak (TTP), mean transit time (MTT), and delay. DSA was utilized to visualize DVA anatomy. Radiation dose was recorded from the scanner console. Increased CTP values were present in the DVA relative to the unaffected contralateral hemisphere of 48%, 32%, and 26%; and for the control group with matched hemispheric comparisons of 2%, -10%, and 9% for CBF, CBV, and MTT, respectively. Average effective radiation dose was 4.4 mSv. Whole-brain DSA and CTP imaging can demonstrate a characteristic appearance of altered...Continue Reading

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Citations

Nov 19, 2013·Clinical Neuroradiology·E GökçeR Celikyay
Jan 23, 2016·Pediatric Radiology·Luke L LinscottTodd A Abruzzo
Apr 11, 2014·Journal of Neuroimaging : Official Journal of the American Society of Neuroimaging·Michael IvGreg Zaharchuk
Jun 28, 2015·European Journal of Radiology·Wolfgang M ThaissKonstantin Nikolaou
Jun 3, 2016·Neurologia Medico-chirurgica·Rie Aoki, Kittipong Srivatanakul
Nov 6, 2018·AJNR. American Journal of Neuroradiology·B SundermannG Douaud
Oct 1, 2017·Experimental and Therapeutic Medicine·Guoquan CaoJinjin Liu
May 10, 2020·Journal of Neuroimaging : Official Journal of the American Society of Neuroimaging·Jillian W LazorSeyed Ali Nabavizadeh
Mar 5, 2020·Neurological Sciences : Official Journal of the Italian Neurological Society and of the Italian Society of Clinical Neurophysiology·Manzoor AhmedFarooq Azam

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