scholarly journals Artifactual microhemorrhage generated by susceptibility weighted image processing

2014 ◽  
Vol 41 (6) ◽  
pp. 1695-1700 ◽  
Author(s):  
Ningzhi Li ◽  
Wen-Tung Wang ◽  
Dzung L. Pham ◽  
John A. Butman
Keyword(s):  
Image Processing ◽  
Weighted Image ◽  
Susceptibility Weighted Image

scholarly journals Diffuse vascular injury: convergent-type hemorrhage in the supratentorial white matter on susceptibility-weighted image in cases of severe traumatic brain damage

2011 ◽  
Vol 54 (4) ◽  
pp. 335-343 ◽  
Author(s):  
Asami Iwamura ◽  
Toshiaki Taoka ◽  
Akio Fukusumi ◽  
Masahiko Sakamoto ◽  
Toshiteru Miyasaka ◽  
...  
Keyword(s):  
White Matter ◽  
Brain Damage ◽  
Vascular Injury ◽  
Weighted Image ◽  
Susceptibility Weighted Image ◽  
Supratentorial White Matter

scholarly journals Susceptibility Weighted Imaging as a Useful Imaging Adjunct in Hemichorea Hyperglycaemia

2013 ◽  
Vol 2013 ◽  
pp. 1-3 ◽  
Author(s):  
Ferry Dharsono ◽  
Andrew Thompson ◽  
Jolandi van Heerden ◽  
Andrew Cheung
Keyword(s):  
Magnetic Resonance Imaging ◽  
Magnetic Resonance ◽  
Corpus Striatum ◽  
Clinical Entity ◽  
Susceptibility Weighted Imaging ◽  
Resonance Imaging ◽  
Weighted Image ◽  
Susceptibility Weighted Image ◽  
Mri Sequences ◽  
Magnetic Resonance Imaging Mri

Hyperglycaemia with hemichorea (HGHC) is an unusual clinical entity that can be associated with corpus striatum hyperintensity on T1-weighted (T1W) magnetic resonance imaging (MRI) sequences. We report the utility of the susceptibility weighted image (SWI) sequence and the filtered phase SWI sequence in the imaging assessment of HGHC.

Application of Magnetic Resonance Susceptibility-Weighted Image in Hepatic Hemangioma

2018 ◽  
Vol 10 (10) ◽  
pp. 1463-1468 ◽  
Author(s):  
Wen-Chang Chen ◽  
Song-Shei Lin ◽  
Yen-Hung Ho ◽  
Wei-Ming Lin
Keyword(s):  
Magnetic Resonance ◽  
Hepatic Hemangioma ◽  
Weighted Image ◽  
Susceptibility Weighted Image

scholarly journals Phase Image of Susceptibility Weighted Image Using High Pass Filter Improved Uniformity

2014 ◽  
Vol 15 (11) ◽  
pp. 6702-6709
Author(s):  
Ho-Beom Lee ◽  
Kwan-Woo Choi ◽  
Soon-Yong Son ◽  
Sa-Ra Na ◽  
Joo-Ah Lee ◽  
...  
Keyword(s):  
Phase Image ◽  
Pass Filter ◽  
Weighted Image ◽  
High Pass Filter ◽  
Susceptibility Weighted Image ◽  
High Pass

Abstract WP231: Detection of Intramural Hematoma by Susceptibility Weighted Image in Vertebral Artery Dissection

Stroke ◽  
2013 ◽  
Vol 44 (suppl_1) ◽  
Author(s):  
Tae-Won Kim ◽  
Jaseong Koo ◽  
Hyun Seok Choi ◽  
Kwang Soo Lee ◽  
Si Baek Lee
Keyword(s):  
Ischemic Stroke ◽  
Vertebral Artery ◽  
Vertebral Artery Dissection ◽  
Intramural Hematoma ◽  
Artery Dissection ◽  
Aneurysmal Dilatation ◽  
Exact Test ◽  
Weighted Image ◽  
Susceptibility Weighted Image ◽  
Phase Map

Objectives The radiologic diagnosis of vertebral artery dissection (VAD) depends on the characteristic intraluminal findings on angiographic study although the pathology of VAD is intramural hematoma. We aimed to know whether ‘intramural hematoma sign (IHS)’ on susceptibility weighted image (SWI) in vertebral artery is specific for VAD. Methods We retrospectively analyzed SWI and phase map images of the consecutive patients with ischemic stroke in the vertebral artery territory from August 2009 to July 2012. We divided the patients into 2 groups; VAD related stroke and atherosclerotic stroke. Diagnostic criteria of VAD related stroke were (a) presence of posterior neck pain or occipital headache and (b) features of VAD at computed tomography angiography or contrast enhanced magnetic resonance angiography or digital subtraction angiography. Angiographic evidence of VAD which is subdivided into three groups: aneurysmal dilatation without stenosis, pearl-and string, and steno-occlusive without aneurysmal dilatation. IHS was considered positive if the patient had (a) eccentric hypointense signal lesion in vertebro-basilar artery on SWI and (b) this signal should be hyperintense on phase map suggesting blood products other than calcification. An experienced neuroradiologist blinded to clinical information was asked to judge the presence of IHS. For statistical analysis, two by two contingency tables by Fisher’s exact test were performed. Results Among the 137 patients with ischemic stroke in the vertebral artery territory, SWI and phase map images were available in 47 patients who were included for our analysis. Among them, 14 patients were diagnosed as an ischemic stroke due to VAD and 33 patients had no VAD (atherosclerotic stroke). Compared to atherosclerotic stroke patients, patients with VAD-related stroke had more headache (64% vs 15%, P=0.016). Among the 14 patients with VAD-related stroke, IHS was detected in 9 cases while only 2 of 33 patients with atherosclerotic stroke showed IHS (sensitivity 64% and specificity 94%). In Fisher’s exact test analysis, the IHS was significantly associated with VAD (p < 0.001). Conclusion The intramural hematoma sign on SWI was significantly associated with vertebral artery dissection.

scholarly journals Detection of Traumatic Cerebral Microbleeds by Susceptibility-Weighted Image of MRI

2009 ◽  
Vol 46 (4) ◽  
pp. 365 ◽  
Author(s):  
Jong-Hwa Park ◽  
Seung-Won Park ◽  
Suk-Hyung Kang ◽  
Taek-Kyun Nam ◽  
Byung-Kook Min ◽  
...  
Keyword(s):  
Cerebral Microbleeds ◽  
Weighted Image ◽  
Susceptibility Weighted Image
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