Usefulness of high-resolution magnetic resonance imaging with 3D T1 blood black sequence to identify intracranial artery dissection

2017 ◽  
Vol 381 ◽  
pp. 630
Author(s):  
Y. Nakamura ◽  
Y. Yoshitaka ◽  
M. Yoshiaki ◽  
M. Naoki ◽  
K. Masatoshi ◽  
...  
Keyword(s):  
Magnetic Resonance Imaging ◽  
Magnetic Resonance ◽  
High Resolution ◽  
Artery Dissection ◽  
Intracranial Artery ◽  
Resonance Imaging ◽  
Intracranial Artery Dissection

scholarly journals M2 segment dissection of middle cerebral artery diagnosed using high-resolution magnetic resonance imaging

2017 ◽  
Vol 45 (6) ◽  
pp. 1802-1804
Author(s):  
Xiaoyan Song ◽  
Haiyan Lv ◽  
Jianjun Tang ◽  
Qing Zhang ◽  
Qiaoshu Wang
Keyword(s):  
Magnetic Resonance Imaging ◽  
Magnetic Resonance ◽  
High Resolution ◽  
Middle Cerebral Artery ◽  
Cerebral Artery ◽  
Imaging Technique ◽  
Intramural Hematoma ◽  
Artery Dissection ◽  
Resonance Imaging ◽  
Intracranial Artery Dissection

Middle cerebral artery (MCA) dissection is a rare cause of ischemic stroke, especially in the M2 or M3 segments. Diagnosis of intracranial artery dissection remains challenging. We herein report a case of M2 segment dissection of the MCA with typical features of an intimal flap and intramural hematoma diagnosed using high-resolution 3T magnetic resonance imaging. This imaging technique might be a more effective noninvasive method by which to diagnose M2 segment dissection of the MCA than either computed tomography angiography or digital subtraction angiography.

scholarly journals Identification of high risk clinical and imaging features for intracranial artery dissection using high-resolution cardiovascular magnetic resonance

2021 ◽  
Vol 23 (1) ◽  
Author(s):  
Zhang Shi ◽  
Xia Tian ◽  
Bing Tian ◽  
Zakaria Meddings ◽  
Xuefeng Zhang ◽  
...  
Keyword(s):  
Cardiovascular Magnetic Resonance ◽  
Magnetic Resonance ◽  
High Resolution ◽  
Artery Dissection ◽  
Black Blood ◽  
Type I ◽  
Imaging Features ◽  
Intracranial Artery ◽  
Intracranial Artery Dissection ◽  
Complementary Value

Abstract Background Intracranial artery dissection (IAD) often causes headache and cerebral vascular ischemic events. The imaging characteristics of IAD remain unclear. This study aims to characterize the appearance of culprit and non-culprit IAD using high-resolution cardiovascular magnetic resonance imaging (hrCMR) and quantify the incremental value of hrCMR in identifying higher risk lesions. Methods Imaging data from patients who underwent intervention examination or treatment using digital subtraction angiography (DSA) and hrCMR using a 3 T CMR system within 30 days after the onset of neurological symptoms were collected. The CMR protocol included diffusion-weighted imaging (DWI), black blood T1-, T2- and contrast-enhanced T1-weighted sequences. Lesions were classified as culprit and non-culprit according to imaging findings and patient clinical presentations. Univariate and multivariate analyses were performed to assess the difference between culprit and non-culprit lesions and complementary value of hrCMR in identifying higher risk lesions. Results In total, 75 patients were included in this study. According to the morphology, lesions could be classified into five types: Type I, classical dissection (n = 50); Type II, fusiform aneurysm (n = 1); Type III, long dissected aneurysm (n = 3); Type IV, dolichoectatic dissecting aneurysm (n = 9) and Type V, saccular aneurysm (n = 12). Regression analyses showed that age and hypertension were both associated with culprit lesions (age: OR, 0.83; 95% CI 0.75–0.92; p < 0.001 and hypertension: OR, 66.62; 95% CI 5.91–751.11; p = 0.001). Hematoma identified by hrCMR was significantly associated with culprit lesions (OR, 16.80; 95% CI 1.01–280.81; p = 0.037). Moreover, 17 cases (16 lesions were judged to be culprit) were diagnosed as IAD but not visible in DSA and 15 were Type I lesion. Conclusion hrCMR is helpful in visualizing and characterizing IAD. It provides a significant complementary value over DSA for the diagnosis of IAD.

Evaluating intracranial artery dissection by using three-dimensional simultaneous non-contrast angiography and intra-plaque hemorrhage high-resolution magnetic resonance imaging: a retrospective study

2021 ◽  
pp. 028418512199223
Author(s):  
Min Tang ◽  
Jinglong Gao ◽  
Jie Gao ◽  
Xuejiao Yan ◽  
Xin Zhang ◽  
...  
Keyword(s):  
Magnetic Resonance Imaging ◽  
Three Dimensional ◽  
Intramural Hematoma ◽  
Artery Dissection ◽  
Diagnostic Efficiency ◽  
Intracranial Artery ◽  
Resonance Imaging ◽  
Double Lumen ◽  
Contrast Angiography ◽  
Intracranial Artery Dissection

Background There was no previous report on the three-dimensional simultaneous non-contrast angiography and intra-plaque hemorrhage (3D-SNAP) magnetic resonance imaging (MRI) sequence to diagnose intracranial artery dissection (IAD). Purpose To improve the diagnostic accuracy and guide the clinical treatment for IAD by elucidating its pathological features using 3D-SNAP MRI. Material and Methods From January 2015 to September 2018, 113 patients with suspected IAD were analyzed. They were divided into IAD and non-IAD groups according to the spontaneous coronary artery dissection (SCAD) criteria. All patients underwent 3D-SNAP, 3D-TOF, T2W imaging, 3D-PD, 3D-T1W-VISTA, and 3D-T1WCE) using 3.0-T MRI; clinical data were collected. The IAD imaging findings (intramural hematoma, double lumen, intimal flap, aneurysmal dilatation, stenosis, or occlusion) in every sequence were analyzed. Receiver operating characteristic (ROC) curve analysis was used to evaluate the diagnostic efficiency of each sequence. Results There was a significant difference in the probability of intramural hematoma, relative signal intensity of intramural hematoma, double lumen, stenosis, or occlusion signs on 3D-TOF, T2W, 3D-PD, 3D-T1W-VISTA, 3D-SNAP, and 3D-T1WCE sequences ( P<0.05). The 3D-SNAP and 3D-T1WCE sequences were most sensitive for diagnosing intramural hematoma and displaying double-lumen signs, respectively. The diagnostic efficiency of the 3D-SNAP sequence combined with 3D-T1WCE was the highest (area under the curve [AUC] 0.966). The AUC value of the 3D-SNAP sequence (AUC 0.897) was slightly inferior to that of 3D-T1W enhancement (AUC 0.903). Conclusion 3D-SNAP MRI is a non-invasive and effective method and had the greatest potential among those methods tested for improving the diagnostic accuracy for IAD.

Structural Changes of Intra and Extracranial Artery Dissection: a Study of High-Resolution Magnetic Resonance Imaging

2022 ◽  
Vol 31 (3) ◽  
pp. 106302
Author(s):  
Kwon Hanim ◽  
Seung Chai Jung ◽  
Chang Jun Young ◽  
Dong-Wha Kang ◽  
Sun U. Kwon ◽  
...  
Keyword(s):  
Magnetic Resonance Imaging ◽  
Magnetic Resonance ◽  
High Resolution ◽  
Structural Changes ◽  
Artery Dissection ◽  
Resonance Imaging

scholarly journals High-Resolution Magnetic Resonance Imaging of Cervicocranial Artery Dissection

Stroke ◽  
2019 ◽  
Vol 50 (11) ◽  
pp. 3101-3107 ◽  
Author(s):  
Ye Wu ◽  
Fang Wu ◽  
Yuehong Liu ◽  
Zhaoyang Fan ◽  
Marc Fisher ◽  
...  
Keyword(s):  
Magnetic Resonance Imaging ◽  
Magnetic Resonance ◽  
High Resolution ◽  
Artery Dissection ◽  
Resonance Imaging

Intramural Hematoma Shape and Acute Cerebral Infarction in Intracranial Artery Dissection: A High-Resolution Magnetic Resonance Imaging Study

2020 ◽  
Vol 49 (3) ◽  
pp. 269-276
Author(s):  
Sang-Hun Lee ◽  
Jin-Man Jung ◽  
Keon-yeup Kim ◽  
Bum Joon Kim
Keyword(s):  
Magnetic Resonance Imaging ◽  
Cerebral Infarction ◽  
Intramural Hematoma ◽  
Distal Region ◽  
Proximal Region ◽  
Artery Dissection ◽  
Intracranial Artery ◽  
Resonance Imaging ◽  
Double Lumen ◽  
Intracranial Artery Dissection

Background: Intracranial artery dissection (IAD) is gaining recognition as an important cause of stroke, but limited information is available about the morphology of the dissection. This study aimed to investigate the relationship between acute cerebral infarctions and the shape of hematoma in patients with IADs using high-resolution magnetic resonance imaging (HRMRI). Methods: We enrolled consecutive patients who presented with vascular headaches, transient ischemic attacks, or ischemic strokes with acute IAD confirmed by HRMRI using key pathognomonic radiological findings of IAD, including intimal flap, intramural hematoma (IMH), and double lumen. All patients were enrolled and HRMRI was performed, both within 7 days of symptom onset. All patients with acute ischemic infarction within 7 days were enrolled. Patients were divided into 2 groups: those with a proximal dominant intramural hematoma (PIMH) and those with a distal dominant intramural hematoma (DIMH). A PIMH was defined as when the volume of the hematoma in the proximal region was greater than that in the distal region, and a DIMH was defined as when the distal region was greater than that in the proximal region. Clinical and radiological characteristics between the 2 groups were compared using univariable and multivariable logistic regression. Results: The mean age of the 42 participants was 52.6 ± 12.7 years, and 24 (57.1%) were male. Twenty-seven (64.3%) had a PIMH and 15 (35.7%) had a DIMH. Thirty-six (85.7%) showed a double lumen and 27 (64.3%) showed a dissecting flap. Acute infarction was observed in 31 (73.8%) patients. Patients with PIMHs showed a higher prevalence of cerebral infarction than those with DIMHs (96.3 vs. 33.3%; p < 0.001). Univariable (odds ratio [OR] 52.00; 95% confidence interval [CI] 5.386–502.082; p = 0.001) and multivariable (OR 65.43; 95% CI 5.20–822.92; p = 0.001) analyses showed that only dissection type was independently associated with the risk of cerebral infarction. Conclusion: In patients with cerebral artery dissections, the shape of IMHs was independently associated with cerebral infarction. PIMHs may be more closely associated with cerebral infarctions than DIMHs.

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