이중에너지 전산화단층촬영으로 뼈를 검사하여 다양한 keV와 조영제 물질 억제(material suppression iodine; MSI), 물질구분(material decomposition; MD)기법을 적용하였을 때, 단일에너지 전산화단층촬영과...
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https://www.riss.kr/link?id=A103226329
2017
-
510
KCI등재
학술저널
253-259(7쪽)
1
0
상세조회0
다운로드국문 초록 (Abstract)
이중에너지 전산화단층촬영으로 뼈를 검사하여 다양한 keV와 조영제 물질 억제(material suppression iodine; MSI), 물질구분(material decomposition; MD)기법을 적용하였을 때, 단일에너지 전산화단층촬영과...
이중에너지 전산화단층촬영으로 뼈를 검사하여 다양한 keV와 조영제 물질 억제(material suppression iodine; MSI), 물질구분(material decomposition; MD)기법을 적용하였을 때, 단일에너지 전산화단층촬영과 비교 평가함으로써 칼슘 부피의 변화를 파악하고자 하였다. 인체유사 팬톰을 이용하여 단일에너지 전산화단층촬영의 영상을 기준으로 이중에너지 전산화단층촬영의 각각 70 keV, 100 keV, 140 keV 및 70 keV-MSI와 MD 칼슘강조-물제거(material calcium weighting; MCW)와 MD 요오드강조-물제거(material iodine weighting; MIW)기법을 적용한 후, 칼슘의 부피를 Agatston score 값으로 비교 평가하였다. 인체유사 팬톰의 칼슘 부피는 keV가 증가할수록 감소하였다(p〈0.05). 가장 유사한 이중에너지 전산화단층촬영 집단은 70 keV로 그 차이는 각각 갈비뼈 35.8±12.2, 대퇴골 16.1±24.1, 골반 13.7±18.8, 척추 179.0±61.8이었다. 그러나 MSI의 부피는 부위별로 각각 갈비뼈 5.55%, 대퇴골 76.34%, 골반 55.16%, 척추 87.58%가 감소하였고, MD(MCW)는 각각 갈비뼈 55.96%, 대퇴골 80.78%, 골반 69.64%, 척추 54.23%가 줄었으며, MD(MIW)는 각각 갈비뼈 83.51%, 대퇴골 87.68%, 골반 86.64%, 척추 82.62%의 차이로 감소되었다(p〈0.05). 이중에너지 전산화단층촬영으로 검사 시, 뼈의 부피는 keV의 증가에 따라서 감소하게 되고 약 70 keV의 에너지 영역에서 CSCT 집단과 유사한 부피로 측정할 수 있다. 그리고 MSI와 MD의 임상기법을 적용한 부피측정은 상당한 오차가 발생하므로 유의하여 사용하여야 한다.
다국어 초록 (Multilingual Abstract)
The study examines changes in calcium volume on born by comparing two figures; one is measured by dual energy computed tomography(DECT) followed by applying variation in monochromatic energy selection( keV), material decomposition(MD), and material su...
The study examines changes in calcium volume on born by comparing two figures; one is measured by dual energy computed tomography(DECT) followed by applying variation in monochromatic energy selection( keV), material decomposition(MD), and material suppressed iodine(MSI) analysis, and the other is measured by conventional single source computed tomography(CSCT). For this study, based on CSCT images taken by using human mimicked phantom, 70, 100, 140 keV and MSI, MD material calcium weighting( MCW) and MD material iodine weighting(MIW) of DECT were applied respectively. Then calculated calcium volume was converted to Agatston score for comparison. Volume of human mimicked phantom was in inverse proportion to keV. The volume decreased while keV increased(p〈0.05). The most similar DECT volumes were reconstructed at 70 keV, the difference was showed 35.8±12.2 for rib, femur (16.1±24.1), pelvis(13.7±18.8), and spine(179.0±61.8). However, the volume of MSI was down for each organ; the volume of rib was 5.55%, femur(76.34%), pelvis(55.16%) and spine(87.58%). The volume of MSI decreased 55.9% for rib, femur(80.7%), pelvis(69.6%) and spine(54.2%) while MD MIW reduced for rib(83.51%), femur(87.68%), pelvis(86.64%), and spine(82.62%). With the results, the study found that outcomes were affected by the method which examiners employed. When using DECT, calcium volume of born dropped with keV increased. It also found that the most similar DECT images were reconstructed at 70 keV. The results of experiments implied that the users of MSI and MD should be cautious of errors as there are big differences in scores between those two methods.
목차 (Table of Contents)
참고문헌 (Reference)
1 Biondi M, "Water/cortical bone decomposition : A new approach in dual energy CT imaging for bone marrow oedema detection" 32 : 1712-1716, 2016
2 Yu L, "Virtual monochromatic imaging in dual-source dual-energy CT : radiation dose and image quality" 38 : 6371-6379, 2011
3 송인영, "Virtual Non-Contrast CT Using Dual-Energy Spectral CT: Feasibility of Coronary Artery Calcium Scoring" 대한영상의학회 17 (17): 321-329, 2016
4 Patel BN, "Single-source dual-energy spectral multidetector CT of pancreatic adenocarcinoma : optimization of energy level viewing significantly increases lesion contrast" 68 : 148-154, 2013
5 Wait JM, "Performance Evaluation of Material Decomposition With Rapid-Kilovoltage -Switching Dual-Energy CT and Implications for Assessing Bone Mineral Density" 204 : 1234-1241, 2015
6 Johnson TR, "Material differentiation by dual energy CT : initial experience" 17 : 1510-1517, 2007
7 Cao JX, "Good interrater reliability of a new grading system in detecting traumatic bone marrow lesions in the knee by dual energy CT virtual non-calcium images" 84 : 1109-1115, 2015
8 Yamada Y, "Feasibility of coronary artery calcium scoring on virtual unenhanced images derived from single-source fast kVp-switching dual-energy coronary CT angiography" 8 : 391-400, 2014
9 Torikoshi M, "Electron density measurement with dual-energy x-ray CT using synchrotron radiation" 48 : 673-685, 2003
10 Karcaaltincaba M, "Dual-energy CT revisited with multidetector CT : review of principles and clinical applications" 17 : 181-194, 2011
1 Biondi M, "Water/cortical bone decomposition : A new approach in dual energy CT imaging for bone marrow oedema detection" 32 : 1712-1716, 2016
2 Yu L, "Virtual monochromatic imaging in dual-source dual-energy CT : radiation dose and image quality" 38 : 6371-6379, 2011
3 송인영, "Virtual Non-Contrast CT Using Dual-Energy Spectral CT: Feasibility of Coronary Artery Calcium Scoring" 대한영상의학회 17 (17): 321-329, 2016
4 Patel BN, "Single-source dual-energy spectral multidetector CT of pancreatic adenocarcinoma : optimization of energy level viewing significantly increases lesion contrast" 68 : 148-154, 2013
5 Wait JM, "Performance Evaluation of Material Decomposition With Rapid-Kilovoltage -Switching Dual-Energy CT and Implications for Assessing Bone Mineral Density" 204 : 1234-1241, 2015
6 Johnson TR, "Material differentiation by dual energy CT : initial experience" 17 : 1510-1517, 2007
7 Cao JX, "Good interrater reliability of a new grading system in detecting traumatic bone marrow lesions in the knee by dual energy CT virtual non-calcium images" 84 : 1109-1115, 2015
8 Yamada Y, "Feasibility of coronary artery calcium scoring on virtual unenhanced images derived from single-source fast kVp-switching dual-energy coronary CT angiography" 8 : 391-400, 2014
9 Torikoshi M, "Electron density measurement with dual-energy x-ray CT using synchrotron radiation" 48 : 673-685, 2003
10 Karcaaltincaba M, "Dual-energy CT revisited with multidetector CT : review of principles and clinical applications" 17 : 181-194, 2011
11 Tran DN, "Dual-energy CT discrimination of iodine and calcium : experimental results and implications for lower extremity CT angiography" 16 : 160-171, 2009
12 Thomas C, "Dual-energy CT : virtual calcium subtraction for assessment of bone marrow involvement of the spine in multiple myeloma" 204 : 324-331, 2015
13 Johnson TR, "Dual-energy CT : general principles" 199 (199): S3-S8, 2012
14 Wang L, "Correlation between CT attenuation value and iodine concentration in vitro : discrepancy between gemstone spectral imaging on single-source dual-energy CT and traditional polychromatic X-ray imaging" 56 : 379-383, 2012
15 Avrin DE, "Clinical application of Compton and photo-electric reconstruction in computed tomography : preliminary results" 13 : 217-222, 1978
16 Barrett JF, "Artifacts in CT: recognition and avoidance" 24 : 1679-1691, 2004
17 Lin HH, "A novel two-compartment model for calculating bone volume fractions and bone mineral densities from computed tomography images" 2016
FDG를 이용한 Brain PET에서 Glucose Level이 영상에 미치는 영향
학술지 이력
연월일 | 이력구분 | 이력상세 | 등재구분 |
---|---|---|---|
2023 | 평가예정 | 재인증평가 신청대상 (재인증) | |
2020-01-01 | 평가 | 등재학술지 선정 (재인증) | |
2019-01-01 | 평가 | 등재후보학술지 유지 (계속평가) | |
2018-12-01 | 평가 | 등재후보로 하락 (계속평가) | |
2015-01-01 | 평가 | 등재학술지 선정 (계속평가) | |
2013-01-01 | 평가 | 등재후보학술지 유지 (기타) | |
2012-01-01 | 평가 | 등재후보학술지 유지 (기타) | |
2011-01-01 | 평가 | 등재후보 1차 PASS (등재후보1차) | |
2010-01-01 | 평가 | 등재후보 1차 FAIL (등재후보1차) | |
2009-01-01 | 평가 | 등재후보학술지 유지 (등재후보2차) | |
2008-01-01 | 평가 | 등재후보 1차 PASS (등재후보1차) | |
2007-05-08 | 학회명변경 | 한글명 : 대한방사선기술학회 -> 대한방사선과학회영문명 : Korean Society Of Radiologial Technology -> Korean Society of Radiological Science | |
2006-01-01 | 평가 | 등재후보학술지 선정 (신규평가) |
학술지 인용정보
기준연도 | WOS-KCI 통합IF(2년) | KCIF(2년) | KCIF(3년) |
---|---|---|---|
2016 | 0.37 | 0.37 | 0.38 |
KCIF(4년) | KCIF(5년) | 중심성지수(3년) | 즉시성지수 |
0.4 | 0.41 | 0.487 | 0.08 |