Development and validation of visual grading system for stenosis in intracranial atherosclerotic disease on time-of-flight magnetic resonance angiography
DC Field | Value | Language |
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dc.contributor.author | You, Sung-Hye | - |
dc.contributor.author | Kim, Byungjun | - |
dc.contributor.author | Yang, Kyung-Sook | - |
dc.contributor.author | Kim, Bo Kyu | - |
dc.contributor.author | Woo, Seungtae | - |
dc.contributor.author | Park, Sang Eun | - |
dc.date.accessioned | 2022-08-15T07:40:39Z | - |
dc.date.available | 2022-08-15T07:40:39Z | - |
dc.date.created | 2022-08-12 | - |
dc.date.issued | 2022-04 | - |
dc.identifier.issn | 0938-7994 | - |
dc.identifier.uri | https://scholar.korea.ac.kr/handle/2021.sw.korea/143246 | - |
dc.description.abstract | Objectives Although the overestimation problem of time-of-flight magnetic resonance angiography (TOF-MRA) applying the warfarin-aspirin symptomatic intracranial disease (WASID) method to assess intracranial arterial stenosis has often been suggested, no pertinent grading system for TOF-MRA has been developed. We aimed to develop and evaluate the performance of a visual grading system for intracranial arterial stenosis on TOF-MRA (MRA(VICAST)). Methods This single-center cohort study analyzed prospective observational registry data from a comprehensive stroke center between January 2014 and February 2020. Patients with confirmed stenosis of the intracranial large arteries who underwent confirmative digital subtraction angiography (DSA) were included; a 4-point grading system was developed based on physical characteristics of TOF-MRA. The overall diagnostic accuracies of MRA(VICAST) for each grade, interobserver reproducibility, and positive predictive values for > 50% and > 70% stenoses were evaluated. Results We analyzed 132 segments with intracranial atherosclerotic stenosis from 71 patients (34 men and 37 women; mean age, 61.0 +/- 15.25 years; range, 21-89 years). The overall diagnostic accuracy of MRA(VICAST) (93.9%, 124/132) was higher than that of MRA(WASID) (50.8%, 67/132) for each grade. The degree of stenosis did not differ significantly between MRA(VICAST) and DSA(WASID) (p = .849). Regarding reproducibility, MRA(VICAST) demonstrated excellent interobserver agreement (ICC, 0.989; 95% CI, 0.979-0.999). The positive predictive values of MRA(VICAST) for the diagnosis of > 50% and > 70% stenoses were 97.3% and 100.0%, respectively. Conclusions The new intuitive grading system accurately and reliably determined the degree of stenosis in intracranial arterial atherosclerosis patients. MRA(VICAST )could be a versatile alternative to MRA(WASID )for evaluating intracranial arterial stenosis. | - |
dc.language | English | - |
dc.language.iso | en | - |
dc.publisher | SPRINGER | - |
dc.subject | VERTEBRAL ARTERY-STENOSIS | - |
dc.subject | MR-ANGIOGRAPHY | - |
dc.subject | STROKE | - |
dc.title | Development and validation of visual grading system for stenosis in intracranial atherosclerotic disease on time-of-flight magnetic resonance angiography | - |
dc.type | Article | - |
dc.contributor.affiliatedAuthor | Kim, Byungjun | - |
dc.identifier.doi | 10.1007/s00330-021-08319-5 | - |
dc.identifier.scopusid | 2-s2.0-85120032114 | - |
dc.identifier.wosid | 000722967600003 | - |
dc.identifier.bibliographicCitation | EUROPEAN RADIOLOGY, v.32, no.4, pp.2781 - 2790 | - |
dc.relation.isPartOf | EUROPEAN RADIOLOGY | - |
dc.citation.title | EUROPEAN RADIOLOGY | - |
dc.citation.volume | 32 | - |
dc.citation.number | 4 | - |
dc.citation.startPage | 2781 | - |
dc.citation.endPage | 2790 | - |
dc.type.rims | ART | - |
dc.type.docType | Article | - |
dc.description.journalClass | 1 | - |
dc.description.journalRegisteredClass | scie | - |
dc.description.journalRegisteredClass | scopus | - |
dc.relation.journalResearchArea | Radiology, Nuclear Medicine & Medical Imaging | - |
dc.relation.journalWebOfScienceCategory | Radiology, Nuclear Medicine & Medical Imaging | - |
dc.subject.keywordPlus | VERTEBRAL ARTERY-STENOSIS | - |
dc.subject.keywordPlus | MR-ANGIOGRAPHY | - |
dc.subject.keywordPlus | STROKE | - |
dc.subject.keywordAuthor | Angiography, digital subtraction | - |
dc.subject.keywordAuthor | Intracranial arteriosclerosis | - |
dc.subject.keywordAuthor | Magnetic resonance angiography | - |
dc.subject.keywordAuthor | Stroke | - |
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