PMID- 10722908 OWN - NLM STAT- MEDLINE DCOM- 20000516 LR - 20190831 IS - 0301-5629 (Print) IS - 0301-5629 (Linking) VI - 26 IP - 2 DP - 2000 Feb TI - Evaluation of posterior cerebral artery flow velocity by transcranial color-coded real-time sonography. PG - 195-9 AB - Using transcranial color-coded real-time sonography (TCCS), we measured peak-systolic flow velocities (PSVs) in segment P2 of 102 posterior cerebral arteries (PCAs) in 61 patients, with angiography. We divided 102 PCAs into four groups: control group (n = 70) with no significant stenotic lesions; PCS group (n = 7) with stenosis >/= 50% of P2 segment; Col (+) group (n = 13) and Col (-) group (n = 12) had occlusive lesions in the carotid system with or without collateral flow from PCA to the middle cerebral artery through the leptomeningeal anastomosis. In the PCS group, PSV (255.7 +/- 67.2 cm/s) was higher than in the other three groups (p < 0.0001). PSV was higher in the Col (+) group (127.6 +/- 31.2) than in the Col (-) (86.6 +/- 20.1) and control (83.8 +/- 24.8) groups (p < 0.001). The measurement of PSV in the P2 segment of PCA using TCCS may help to identify a significant stenosis in PCA. FAU - Kimura, K AU - Kimura K AD - Cerebrovascular Division, Department of Medicine, National Cardiovascular Center, 5-7-1 Fujishirodai, Suita, Osaka, Japan. FAU - Minematsu, K AU - Minematsu K FAU - Yasaka, M AU - Yasaka M FAU - Wada, K AU - Wada K FAU - Yamaguchi, T AU - Yamaguchi T LA - eng PT - Comparative Study PT - Journal Article PT - Research Support, Non-U.S. Gov't PL - England TA - Ultrasound Med Biol JT - Ultrasound in medicine & biology JID - 0410553 SB - IM MH - Blood Flow Velocity MH - Cerebral Angiography MH - Cerebrovascular Circulation/*physiology MH - Collateral Circulation/physiology MH - Female MH - Humans MH - Intracranial Arteriosclerosis/*diagnostic imaging/physiopathology MH - Male MH - Middle Aged MH - Observer Variation MH - Posterior Cerebral Artery/*diagnostic imaging/physiopathology MH - Reproducibility of Results MH - Retrospective Studies MH - *Ultrasonography, Doppler, Transcranial EDAT- 2000/03/21 09:00 MHDA- 2000/05/20 09:00 CRDT- 2000/03/21 09:00 PHST- 2000/03/21 09:00 [pubmed] PHST- 2000/05/20 09:00 [medline] PHST- 2000/03/21 09:00 [entrez] AID - S0301-5629(99)00114-3 [pii] AID - 10.1016/s0301-5629(99)00114-3 [doi] PST - ppublish SO - Ultrasound Med Biol. 2000 Feb;26(2):195-9. doi: 10.1016/s0301-5629(99)00114-3.