Results 171 to 180 of about 3,073 (215)

Optimizing thrombectomy in medium vessel occlusion: Focus on vessel diameter

Interventional Neuroradiology
Objectives Mechanical thrombectomy for medium vessel occlusion (MeVO) is a challenging field with limited results. In this study, we aimed at evaluating the efficacy and safety of a procedural strategy beginning with occluded vessel diameter measurement and matched aspiration catheter selection.
Yujiro Tanaka, Daisuke Watanabe, Yusuke Kanoko, Aya Inoue, Daichi Kato, Shota Igasaki, Akira Kikuta, Motoyori Ogasawara, Kodai Kanemaru, Hibiku Maruoka   +9 more
openaire   +2 more sources

Diameters of the Retinal Vessels in Diabetic and Normal Subjects

Diabetes, 1969
The diameters of the retinal veins and arteries have been measured on photographs of the retina of 346 juvenile diabetic and 147 normal subjects. Statistical analysis of data was made from the findings in 266 diabetic and 129 normal subjects. The mean width of the retinal veins in the diabetic group was about 10 per cent greater than ...
F, Skovborg, A V, Nielsen, E, Lauritzen, O, Hartkopp   +3 more
openaire   +2 more sources

Method for retinal vessel detection and diameter measurement

SPIE Proceedings, 2004
Since retinal vessel detection and measurement plays an important role in diagnosing cardiovascular diseases, a lot of efforts have been made in recent years. In this paper, we propose an efficient method for vessel detection and diameter measurement which incorporates with edge detection, path searching, and matched filtering.
Xiaokun Li, Tong Fang, Jenn-Kwei Tyan, Ming Fang   +3 more
openaire   +1 more source

Algorithms for the extraction of various diameter vessels.

Cellular and molecular biology (Noisy-le-Grand, France), 2007
In this communication we propose a new and automatic strategy for the multi-scale extraction of vessels. The objective is to obtain a good representation of the vessels. That is to say a precise characterization of their centerlines and diameters.
Tremblais, Benoit, Capelle-Laizé, Anne-Sophie, Augereau, Bertrand   +2 more
openaire   +2 more sources

Revised formulas for summarizing retinal vessel diameters

Current Eye Research, 2003
Background/Purpose. Recent findings suggest that an objective assessment of retinal vessel caliber from fundus photographs provide information about the association of microvascular characteristics with macrovascular disease. Current methods used to quantify retinal vessel caliber, introduced by Parr(1,2) and Hubbard,(3) are not independent of scale ...
Knudtson, M.D., Lee, K.E., Hubbard, L.D., Klein, R., Klein, B.E.K., Wong, T.Y.   +5 more
openaire   +2 more sources

An algorithm for angiographic estimation of blood vessel diameter

Journal of Applied Physiology, 1991
This study was carried out in an attempt to develop an objective and robust method for measuring changes in the diameters of small blood vessels from X-ray angiographic images. Recognizing potential problems with edge detection methods applied to cylindrical vessels in which the contrast diminishes as the boundary is approached, we have attempted to ...
A V, Clough, G S, Krenz, M, Owens, A, al-Tinawi, C A, Dawson, J H, Linehan   +5 more
openaire   +2 more sources

An ecophysiological and developmental perspective on variation in vessel diameter

Plant, Cell & Environment, 2016
AbstractVariation in xylem vessel diameter is one of the most important parameters when evaluating plant water relations. This review provides a synthesis of the ecophysiological implications of variation in lumen diameter together with a summary of our current understanding of vessel development and its endogenous regulation.
Uwe G, Hacke, Rachel, Spicer, Stefan G, Schreiber, Lenka, Plavcová   +3 more
openaire   +2 more sources

“Open y” technique in vessel diameter discrepancy

Microsurgery, 2006
For the last 20 years, free tissue transfers have increasingly become the mainstay of plastic surgery. Size discrepancy between the vessels during tissue transfers are frequently encountered in clinical practice, and this may potentially be an important factor in the patency of anastomosis.
Akan, Mithat, Çakır, Barış, Aköz, Tayfun   +2 more
openaire   +3 more sources

Reliability of vessel diameter measurements with a retinal oximeter

Graefe's Archive for Clinical and Experimental Ophthalmology, 2011
The purpose of this study was to test the reliability of vessel diameter measurements with a newly developed retinal oximeter.Twelve healthy individuals participated in the study. Retinal images were taken with the Oxymap Retinal Oximeter. Diameters of retinal vessels were measured automatically with the Oxymap Analyzer software.
Renata, Blondal, Margret Kara, Sturludottir, Sveinn Hakon, Hardarson, Gisli Hreinn, Halldorsson, Einar, Stefánsson   +4 more
openaire   +2 more sources

The Relationship Between Shear Rate and Vessel Diameter

Anesthesia & Analgesia, 2003
[No abstract available]
Ercan, M, Koksal, C
openaire   +1 more source