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한국학술지인용색인(NRF)
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목적: 두개 내외의 협착과 폐쇄성 혈관질환의 평가에 있어 골감산 3차원 CT angiography (이하 CTA)의 유용성을 평가하고자 하였다. 대상과 방법: 64채널 다중검출기 CT를 이용한 CTA와 digital subtraction angiography (이하 DSA)를 모두 시행한 56명의 환자를 대상으로 하였다. 골감산 CTA (이하 BSCTA)를 위하여 조영 전 CT와 조영증강 CTA 데이터를 얻었다. 각 혈관분절의 협착 정도를 분석하여 5단계로 분류하였으며, DSA 결과를 기준으로 CTA 영상을 비교하였다. 결과: 두개 외 혈관의 경우 370개의 혈관분절을 분석하였고, 이 중 359(97.0%)개의 분절에서 CTA와 DSA 결과가 일치하였고 통계적으로 유의한 일치도를 보였다(Rs = 0.974). 50% 이상의 협착을 진단하는 데 있어 CTA는 100%, 98.2%, 98.6%의 민감도, 특이도, 진단적 정확도를 보였다. 두개 혈관의 경우 1029개의 분절을 분석하였는데, 이 중 966(93.9%)개의 분절에서 CTA와 DSA 결과가 일치하였고 통계적으로 유의하였다(Rs = 0.880). 50% 이상의 협착을 진단하는 데 있어 CTA의 민감도, 특이도, 진단적 정확도는 각각 100%, 95.8%, 96.0%였다. CTA와 DSA 결과가 일치하지 않았던 74개 분절은 모두 CTA에서 협착의 정도를 과대 평가하였다. 결론: 두개 내외의 협착과 폐쇄성 혈관질환의 평가에 있어 BSCTA는 DSA에 필적할만한 결과를 보였다. 그러나 석회화를 동반한 병변의 경우 협착 정도가 CTA에서 과대평가되는 경향을 보였다.
Purpose: To investigate the efficacy of bone subtraction CT angiography (BSCTA) for the evaluation of steno-occlusive intra- and extracranial vascular diseases. Materials and Methods: Fifty-six patients were examined using 64-slice multidetector CT and digital subtraction angiography (DSA). For BSCTA, both nonenhanced CT and enhanced CT angiography (CTA) data sets were obtained. The stenotic degree of each vascular segment was assessed and classified into 5 grades. With DSA as the standard, CTA images were compared. Results: For the evaluation of the extracranial vessels, 370 arterial segments were analyzed, and the stenotic degree revealed by CTA and DSA agreed in 359 (97.0%). There was a significant correlation between CTA and DSA (Rs = 0.974). For depiction of ≥ 50% stenosis, the sensitivity, specificity, and diagnostic accuracy of BSCTA were 100%, 98.2%, and 98.6%, respectively. For the intracranial arteries, 1029 segments were analyzed, and CTA agreed with DSA in 966 (93.9%). There was a significant correlation between CTA and DSA for stenotic degree (Rs = 0.880). For the depiction of ≥ 50% stenosis, the sensitivity, specificity, and diagnostic accuracy of CTA were 100%, 95.8%, and 96.0%, respectively. In all 74 segments of disagreement, the degree of stenosis was overestimated on CTA. Conclusion: BSCTA is comparable to DSA for the evaluation of steno-occlusive intra- and extracranial vascular diseases. However, the stenotic degree tends to be overestimated on BSCTA, especially in cases of wall calcifications.
Purpose: To investigate the efficacy of bone subtraction CT angiography (BSCTA) for the evaluation of steno-occlusive intra- and extracranial vascular diseases. Materials and Methods: Fifty-six patients were examined using 64-slice multidetector CT and digital subtraction angiography (DSA). For BSCTA, both nonenhanced CT and enhanced CT angiography (CTA) data sets were obtained. The stenotic degree of each vascular segment was assessed and classified into 5 grades. With DSA as the standard, CTA images were compared. Results: For the evaluation of the extracranial vessels, 370 arterial segments were analyzed, and the stenotic degree revealed by CTA and DSA agreed in 359 (97.0%). There was a significant correlation between CTA and DSA (Rs = 0.974). For depiction of ≥ 50% stenosis, the sensitivity, specificity, and diagnostic accuracy of BSCTA were 100%, 98.2%, and 98.6%, respectively. For the intracranial arteries, 1029 segments were analyzed, and CTA agreed with DSA in 966 (93.9%). There was a significant correlation between CTA and DSA for stenotic degree (Rs = 0.880). For the depiction of ≥ 50% stenosis, the sensitivity, specificity, and diagnostic accuracy of CTA were 100%, 95.8%, and 96.0%, respectively. In all 74 segments of disagreement, the degree of stenosis was overestimated on CTA. Conclusion: BSCTA is comparable to DSA for the evaluation of steno-occlusive intra- and extracranial vascular diseases. However, the stenotic degree tends to be overestimated on BSCTA, especially in cases of wall calcifications.
권호기사
참고문헌 (23건) : 자료제공( 네이버학술정보 )
| 번호 | 참고문헌 | 국회도서관 소장유무 |
|---|---|---|
| 1 | Carotid computed tomography angiography with automated bone suppression: a comparative study between dual energy and bone subtraction techniques.  |
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| 2 | Subtraction CT angiography with controlled-orbit helical scanning for detection of intracranial aneurysms. |
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| 3 | CT angiography of the circle of Willis and intracranial internal carotid arteries: maximum intensity projection with matched mask bone elimination-feasibility study. |
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| 4 | Dose related, comparative evaluation of a novel bone-subtraction algorithm in 64-row cervico-cranial CT angiography. |
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| 5 | Clinical evaluation of bone-subtraction CT angiography (BSCTA) in head and neck imaging. |
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| 6 | Morhard D, Fink C, Becker C, Reiser MF, Nikolaou K. Value of automatic bone subtraction in cranial CT angiography: comparison of bone-subtracted vs. standard CT angiography in 100 patients. Eur Radiol 2008;18:974-982 | 미소장 |
| 7 | Cranial computed tomography angiography with automated bone subtraction: a feasibility study. |
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| 8 | Carotid artery stenosis: prospective comparison of CT, three-dimensional gadolinium-enhanced MR, and conventional angiography. |
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| 9 | A standardized method for measuring intracranial arterial stenosis. |
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| 10 | Value of the CT angiography in the diagnosis of common carotid artery bifurcation disease: CT angiography versus digital subtraction angiography and color flow Doppler |
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| 11 | Intracranial vascular stenosis and occlusive disease: evaluation with CT angiography, MR angiography, and digital subtraction angiography. |
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| 12 | Carotid artery stenosis: a prospective comparison of CT angiography and conventional angiography. |
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| 13 | Computed tomographic angiography for the evaluation of carotid artery stenosis. |
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| 14 | Common carotid artery bifurcation: evaluation with spiral CT. Work in progress. |
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| 15 | Noninvasive Detection of Vertebral Artery Stenosis: A Comparison of Contrast-Enhanced MR Angiography, CT Angiography, and Ultrasound |
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| 16 | Imaging of vertebral artery stenosis: a systematic review. |
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| 17 | How Accurate Is CT Angiography in Evaluating Intracranial Atherosclerotic Disease? |
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| 18 | Prospective evaluation of suspected stenoocclusive disease of the intracranial artery: combined MR angiography and CT angiography compared with digital subtraction angiography. |
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| 19 | Bone subtraction CTA for transcranial arteries: intra-individual comparison with standard CTA without bone subtraction and TOF-MRA |
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| 20 | Angiographic correlation of CT calcification in the carotid siphon. |
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| 21 | Evaluation of heavily calcified vessels with coronary CT angiography: comparison of iterative and filtered back projection image reconstruction. |
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| 22 | Dual Energy CT and its use in neuroangiography. |
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| 23 | Dual-energy direct bone removal CT angiography for evaluation of intracranial aneurysm or stenosis: comparison with conventional digital subtraction angiography. |
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