확산강조영상 검사 시 프로토콜 이해: 문헌연구 중심으로
Understanding Protocols for Diffusion-weighted Imaging Testing: Focused on Literature Article
1
조회
0
다운로드
1
인용
0
참고문헌
키워드
초록
This study was intended to provide an overview of how diffusion MR is applied in clinicalpractice and discuss its potential role. As a method, we compared the differences between FLAIRand DWI of acute infarction and T2WI and DWI of small acute infarct, and found differences in imagesaccording to the b-value of hepatocellular carcinoma. ADC changes were also observed. These resultsshowed that when FLAIR and DWI were compared, Acute lesions were better in DWI and MultipleEmbolic Infarcts were also clearly revealed. The diffusion of the brain was characterized by anisotropy,and gangrene tumors and abscesses could be easily distinguished by the distinct diffusion coefficientdifference. In hepatocellular carcinoma disease, the lesion was more visible in the case of the low b-valuethan in the case of the high b-value. In transient disease, the slice thickness was thin, and the smallerthe b-value, the more visible the lesion. In conclusion, based on this literature study, information wasprovided to understand the protocol for the overall DWI examination.
Abstract
This study was intended to provide an overview of how diffusion MR is applied in clinicalpractice and discuss its potential role. As a method, we compared the differences between FLAIRand DWI of acute infarction and T2WI and DWI of small acute infarct, and found differences in imagesaccording to the b-value of hepatocellular carcinoma. ADC changes were also observed. These resultsshowed that when FLAIR and DWI were compared, Acute lesions were better in DWI and MultipleEmbolic Infarcts were also clearly revealed. The diffusion of the brain was characterized by anisotropy,and gangrene tumors and abscesses could be easily distinguished by the distinct diffusion coefficientdifference. In hepatocellular carcinoma disease, the lesion was more visible in the case of the low b-valuethan in the case of the high b-value. In transient disease, the slice thickness was thin, and the smallerthe b-value, the more visible the lesion. In conclusion, based on this literature study, information wasprovided to understand the protocol for the overall DWI examination.
참고문헌 (19)
- 구은회, "복부 진단에 있어 Diffusion MRI에 관한 영상의 질 연구: 1, 4NEX, NT, RT의 기술적 비교", 방사선산업학회지, 14(1), pp.43~49 (2020), (사)한국방사선산업학회[DOI]
- Singh TB, "The Diagnostic Ability of rs-DWI to Detect Subtle Acute Infarction Lesion in the Different Regions of the Brain and the Comparison between Different b-Values", Biomed. Res. Int, pp.7069192~ (2018)[DOI]
- Ilsang Woo, "Fully Automatic Segmentation of Acute Ischemic Lesions on Diffusion-Weighted Imaging Using Convolutional Neural Networks: Comparison with Conventional Algorithms", Korean Journal of Radiology, 20(8), pp.1275~1284 (2019), 대한영상의학회[DOI]
- Seo HS, "High b-value diffusion(b=3000 s", mm2)MR imaging in cerebral gliomas at 3T : visual and quantitative comparisons with b=1000s, AJNR, pp.2008, 29(3)[DOI]
- 김선희, "급성 뇌경색 진단을 위한 CT관류영상과 MR확산영상의 비교", 한국방사선학회논문지, 6(1), pp.19~26 (2012), 한국방사선학회
- 김성길, "급성 뇌경색 환자에서 예후 추측인자로서의 확산텐서영상 비등방도", 한국방사선학회논문지, 4(3), pp.13~18 (2010), 한국방사선학회
- 최대섭, "확산강조영상에서 고신호 강도를 보이는 두개 내 병변들: 임상화보", 대한영상의학회지, 55(1), pp.21~32 (2006), 대한영상의학회
- 최현석, "Glioma Grading Capability: Comparisons among Parameters from Dynamic Contrast-Enhanced MRI and ADC Value on DWI", Korean Journal of Radiology, 14(3), pp.487~492 (2013), 대한영상의학회[DOI]
- 최상일, "High-Resolution Diffusion Tensor MR Imaging for Evaluating Myocardial Anisotropy and Fiber Tracking at 3T: the Effect of the Number of Diffusion- Sensitizing Gradient Directions", Korean Journal of Radiology, 11(1), pp.54~59 (2010), 대한영상의학회
- Hyun-Chul Choi, "Preoperative Assessment of Cystic Brain Lesion :Significance of Diffusion-Weighted Image and ADC (Apparent Diffusion Coefficiency) Values", 대한신경외과학회지, 41(6), pp.371~376 (2007), 대한신경외과학회
- Zhang H, "High signal renal tumors on DWI : the diagnostic value of morphological characteristics", Abdom. Radiol. (NY), 44(1), pp.239~246 (2019)
- 김경민, "뇌 확산강조검사에서 기존 High b-value 확산강조영상과의 비교를 통한 Computed High b-value 확산강조영상의 진단적 유용성 평가", 대한자기공명기술학회지, 29(1), pp.1~10 (2019), 대한자기공명기술학회[DOI]
- Kim HJ, "High-b-value diffusion-weighted MR imaging of hyperacute ischemic stroke at 1.5T", AJNR, 26(2), pp.208~215 (2005)
- 김진권, "The Effect of Pulsatility Index on Infarct Volume in Acute Lacunar Stroke", Yonsei Medical Journal, 57(4), pp.950~955 (2016), 연세대학교의과대학[DOI]
- Sah RG, "Diffusion-Weighted MRI Stroke Volume Following Recanalization Treatment is Threshold-Dependent", Clin. Neuroradiol, 29(1), pp.135~141 (2019)
- Lee YC, "Diffusion-Weighted MR Imaging of the Brain Tumors : The Clinical Usefulness", J. Korean Soc. Magn. Reson. Med, 4(1), pp.34~41 (2000)
- 윤영철, "척추의 확산강조 자기공명영상", 대한영상의학회지, 81(1), pp.58~69 (2020), 대한영상의학회[DOI]
- Duran R, "Hepatic hemangiomas : factors associated with T2 shine-through effect on diffusion-weighted MR sequences", EJR, 83(3), pp.468~478 (2014)
- Burdette JH, "Acute cerebral infarction : quantification of spin-density and T2 shine-through phenomena on diffusion-weighted MR images", Radiology, 212(2), pp.333~339 (1999)