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Breath-Hold MR Imaging of Focal Hepatic Lesions: Clinical Usefulness of Breath-Hold TSE T2WI Combined by Fast Low-Angle Shot (FLASH) MR Imaging
DC Field | Value | Language |
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dc.contributor.author | 김기황 | - |
dc.contributor.author | 김은경 | - |
dc.contributor.author | 유정식 | - |
dc.date.accessioned | 2021-09-28T07:52:02Z | - |
dc.date.available | 2021-09-28T07:52:02Z | - |
dc.date.issued | 1996-12 | - |
dc.identifier.issn | 0301-2867 | - |
dc.identifier.uri | https://ir.ymlib.yonsei.ac.kr/handle/22282913/183237 | - |
dc.description.abstract | PURPOSE: To compare the image quality and diagnostic efficacy of turbo spin-echo (TSE) T2WI with breath-holdturbo SE T2WI and to evaluate the clinical usefulness combined breath-hold turbo SE T2WI with FLASH(fast low-angleshot) MR imaging for the evaluation of focal hepatic lesions. MATERIALS AND METHODS: A total of 47 patients with known or suspected hepatic mass were prospectively evaluated using a commercially available 1.5-T MR system. All patients were examined with conventional spin-echo T1WI, TSE T2WI, breath-hold TSE T2WI, and T1-weighted FLASHwith and without Gd-DTPA. The images were compared quantitatively (liver-lesion C/N ; CNR [contrast-to-noiseratio] and lesion detectability) and qualitatively (sharpness of anatomic structure, artifact, and overall imagequality). RESULTS: A total of 69 hepatic lesions were detected in 47 patients. Sixty-seven lesions (97.1%) were detected with Gd-FLASH, 66 (95.7%) with TSE T2WI, 65 (94.2%) with breath-hold TSE T2WI, 62 (89.9%) withnon-enhanced FLASH, and 55 (79.7%) with conventional SE T1WI. The CNR of cysts and hemangiomas was significantly greater on turbo SE T2WI and breath-hold TSE T2WI than on other sequences, but there was no significant difference between turbo SE T2WI and breath-hold TSE T2WI. For solid lesions, CNR was greatest on turbo SE T2WI and was similar on breath-hold TSE T2WI and Gd-FLASH without statistical significance, but was significantly higher than conventional SE T1WI. Breath-hold TSE T2WI and Gd-FLASH were qualitatively superior to other sequences except the vascular pulsation artifact of FLASH. Non-enhanced FLASH was also superior to conventional T1WI for CNR, lesion detectability, sharpness, respiratory motion artifact, and overall image quality. CONCLUSION: Breath-hold TSET2WI may replace turbo SE T2WI, and as well as conventional SE T1WI, FLASH with or without Gd-DTPA may be used for the evaluation of focal hepatic lesions. The combination of FLASH and breath-hold TSE T2WI may be an excellent technique that can be used to rapidly evaluate liver lesions, and at the same time offer superior overall imagequality. | - |
dc.description.statementOfResponsibility | open | - |
dc.language | Korean | - |
dc.publisher | 대한방사선의학회 | - |
dc.relation.isPartOf | Journal of the Korean Radiologist Society(대한방사선의학회지) | - |
dc.rights | CC BY-NC-ND 2.0 KR | - |
dc.title | Breath-Hold MR Imaging of Focal Hepatic Lesions: Clinical Usefulness of Breath-Hold TSE T2WI Combined by Fast Low-Angle Shot (FLASH) MR Imaging | - |
dc.title.alternative | 국소적 간병변에 대한 호흡보상이 가능한 자기공명영상 : 호흡보상 - 급속스핀에코 T2-강조영상과 FLASH 영상 조합의임상적 유용성 | - |
dc.type | Article | - |
dc.contributor.college | College of Medicine (의과대학) | - |
dc.contributor.department | Dept. of Radiology (영상의학교실) | - |
dc.contributor.googleauthor | Tae Hoon Kim | - |
dc.contributor.googleauthor | Ki Whang Kim | - |
dc.contributor.googleauthor | Eun Kyung Kim | - |
dc.contributor.googleauthor | Jeong Sik Yu | - |
dc.identifier.doi | 10.3348/jkrs.1996.35.6.929 | - |
dc.contributor.localId | A00345 | - |
dc.contributor.localId | A00801 | - |
dc.contributor.localId | A02500 | - |
dc.relation.journalcode | J01844 | - |
dc.subject.keyword | Liver neoplasms, MR | - |
dc.subject.keyword | Magnetic resonance(MR), technology | - |
dc.contributor.alternativeName | Kim, Ki Whang | - |
dc.contributor.affiliatedAuthor | 김기황 | - |
dc.contributor.affiliatedAuthor | 김은경 | - |
dc.contributor.affiliatedAuthor | 유정식 | - |
dc.citation.volume | 35 | - |
dc.citation.number | 6 | - |
dc.citation.startPage | 929 | - |
dc.citation.endPage | 937 | - |
dc.identifier.bibliographicCitation | Journal of the Korean Radiologist Society (대한방사선의학회지), Vol.35(6) : 929-937, 1996-12 | - |
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