scholarly journals Automatic Cerebrovascular Segmentation by Accurate Probabilistic Modeling of TOF-MRA Images

2005 ◽  
pp. 34-42 ◽  
Author(s):  
Ayman El-Baz ◽  
Aly A. Farag ◽  
Georgy Gimel’farb ◽  
Stephen G. Hushek
Keyword(s):  
Probabilistic Modeling ◽  
Tof Mra ◽  
Cerebrovascular Segmentation

scholarly journals A Fast and Fully Automatic Method for Cerebrovascular Segmentation on Time-of-Flight (TOF) MRA Image

2010 ◽  
Vol 24 (4) ◽  
pp. 609-625 ◽  
Author(s):  
Xin Gao ◽  
Yoshikazu Uchiyama ◽  
Xiangrong Zhou ◽  
Takeshi Hara ◽  
Takahiko Asano ◽  
...  
Keyword(s):  
Time Of Flight ◽  
Automatic Method ◽  
Tof Mra ◽  
Cerebrovascular Segmentation ◽  
Fully Automatic

Finite mixture model of stochastic cerebrovascular segmentation based on TOF MRA

2014 ◽  
Vol 22 (2) ◽  
pp. 497-507
Author(s):  
王醒策 WANG Xing-ce ◽  
文蕾 WEN Lei ◽  
武仲科 WU Zhong-ke ◽  
周明全 ZHOU Ming-quan ◽  
田沄 TIAN Yun ◽  
...  
Keyword(s):  
Mixture Model ◽  
Finite Mixture Model ◽  
Finite Mixture ◽  
Tof Mra ◽  
Cerebrovascular Segmentation

scholarly journals Cerebrovascular segmentation from TOF-MRA using model- and data-driven method via sparse labels

2020 ◽  
Vol 380 ◽  
pp. 162-179 ◽  
Author(s):  
Baochang Zhang ◽  
Shuting Liu ◽  
Shoujun Zhou ◽  
Jian Yang ◽  
Cheng Wang ◽  
...  
Keyword(s):  
Data Driven ◽  
Tof Mra ◽  
Cerebrovascular Segmentation

Cerebrovascular segmentation from TOF-MRA based on multiple-U-net with focal loss function

2021 ◽  
Vol 202 ◽  
pp. 105998
Author(s):  
Xiaoyu Guo ◽  
Ruoxiu Xiao ◽  
Yuanyuan Lu ◽  
Cheng Chen ◽  
Fei Yan ◽  
...  
Keyword(s):  
Loss Function ◽  
Tof Mra ◽  
Cerebrovascular Segmentation

A comparative analysis framework of 3T and 7T TOF-MRA based on automated cerebrovascular segmentation

2021 ◽  
Vol 89 ◽  
pp. 101830
Author(s):  
Jia Liu ◽  
Fang Chen ◽  
Xianyu Wang ◽  
Xinran Zhang ◽  
Kaibao Sun ◽  
...  
Keyword(s):  
Comparative Analysis ◽  
Analysis Framework ◽  
Tof Mra ◽  
Cerebrovascular Segmentation

Assessment of extracranial-intracranial bypass in Moyamoya disease using 3T time-of-flight MR angiography: Comparison with CT angiography

VASA ◽  
2014 ◽  
Vol 43 (4) ◽  
pp. 278-283 ◽  
Author(s):  
Qian Chen ◽  
Rongfeng Qi ◽  
Xiaoqing Cheng ◽  
Changsheng Zhou ◽  
Song Luo ◽  
...  
Keyword(s):  
Image Quality ◽  
Moyamoya Disease ◽  
Mr Angiography ◽  
Time Of Flight ◽  
Consecutive Series ◽  
Tof Mra ◽  
Bypass Patency ◽  
Significant Difference ◽  
Contrast Technique ◽  
Vessel Integrity

Background: To evaluate the value of time-of-flight MR angiography (TOF MRA) for the assessment of extracranial-intracranial (EC-IC) bypass in Moyamoya disease in comparison with computed tomography angiography (CTA). Patients and methods: A consecutive series of 23 patients with Moyamoya disease were analyzed retrospectively. Twenty three patients underwent 25 procedures of extracranial-intracranial bypass. Cranial CTA was performed within one week after the surgery to assess bypass patency. Then TOF MRA was scanned within 24 h after CTA on a 3T MRI system. Using 5-point scales (0 = poor to 4 = excellent), two radiologists rated the image quality and vessel integrity of bypass for three segments (extracranial, trepanation, intracranial). Results: Image quality was high in both CTA and TOF MRA (mean quality score 3.84 ± 0.37 and 3.8 ± 0.41), without statistical difference (p = 0.66). Mean scores of TOF MRA with respect to bypass visualization were higher than CTA in the intracranial segment (p = 0.026). No significant difference of bypass visualization regarding the extracranial and trepanation segments was found between TOF MRA and CTA (p = 0.66 and p = 0.34, respectively). For the trepanation segment, TOF MRA showed pseudo lesions in 2 of all 25 cases. Conclusions: 3T TOF MRA, a non-contrast technique not exposing the patients to radiation, proved to be at least equal to CTA for the assessment of EC-IC bypass, and even superior to CTA with respect to the intracranial segment. In addition, readers should be aware of a potential overestimation showing focal pseudo lesions of the bypass at the trepanation segment in TOF MRA.

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