혈관조영장비의 테이블-피사체간 거리 변화에 따른 혈관측정 정확도 연구
Study on the Accuracy of Vessel Measurement According to Table Object Distance Changes
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초록
This is to study the accuracy of the actual size according to the TOD(table object distance; TOD) change when measuring blood vessels using angiography equipment, and to help the optimal selection of the device used accordingly. Balls similar to the size of common vessels were calibrated with TOD using 30 ㎜, 20 ㎜, 10 ㎜, 5 ㎜ and acrylic phantoms, catheter calibration from 0 ㎝ to 10 ㎝, 20 ㎝ and 30 ㎝, respectively. It was measured whether there was a change in the measured value according to the change. The equipment used was GE Innova 3131 IQ equipment, and the image reconstruction method was GE AW4.7 post processing program. Two radiotechnologists were scanned three times by catheter calibration method and 3DRA(3dimension rotational angiography; 3DRA) volume rendering method. The independent sample T-test showed 0.981 (p> 0.05) to verify the significance between the two observers. As a result, in case of catheter calibration, the error rate at TOD 0 ㎜ and 10 ㎜ is within ± 10%, but when the TOD is changed to 20 ㎜ and 50 ㎜ respectively, the tolerance is ± 10% except for 30 ㎜ ball exceeded. On the other hand, 3DRA was included within the tolerance range of ± 10% overall even when the TOD was changed from 0 ㎜ to 50 ㎜. In the catheter calibration method, the larger the TOD, the larger the error range, and the 3DRA method was able to measure vascular vessels accurately close to the actual measurement without any consideration of the TOD.
Abstract
This is to study the accuracy of the actual size according to the TOD(table object distance; TOD) change when measuring blood vessels using angiography equipment, and to help the optimal selection of the device used accordingly. Balls similar to the size of common vessels were calibrated with TOD using 30 ㎜, 20 ㎜, 10 ㎜, 5 ㎜ and acrylic phantoms, catheter calibration from 0 ㎝ to 10 ㎝, 20 ㎝ and 30 ㎝, respectively. It was measured whether there was a change in the measured value according to the change. The equipment used was GE Innova 3131 IQ equipment, and the image reconstruction method was GE AW4.7 post processing program. Two radiotechnologists were scanned three times by catheter calibration method and 3DRA(3dimension rotational angiography; 3DRA) volume rendering method. The independent sample T-test showed 0.981 (p> 0.05) to verify the significance between the two observers. As a result, in case of catheter calibration, the error rate at TOD 0 ㎜ and 10 ㎜ is within ± 10%, but when the TOD is changed to 20 ㎜ and 50 ㎜ respectively, the tolerance is ± 10% except for 30 ㎜ ball exceeded. On the other hand, 3DRA was included within the tolerance range of ± 10% overall even when the TOD was changed from 0 ㎜ to 50 ㎜. In the catheter calibration method, the larger the TOD, the larger the error range, and the 3DRA method was able to measure vascular vessels accurately close to the actual measurement without any consideration of the TOD.
참고문헌 (15)
- Yoon PH, "Endovascular treatment of cerebral aneurysm", The Korean Neurocritical Care Society, 2, pp.74~92 (2009)
- Fortin DF, "Pitfalls in the determination of absolute dimension using angiographic catheter as calibration device in quantitation angiography", Am J Cardiol, 68(11), pp.1176~1182 (1991)
- Okuda K, "Natural history of hepatocellular carcinoma and prognosis in relation to treatment Study of 850 patients", Cancer, 56(4), pp.918~928 (1985)
- Raabe A, "Three-dimensional rotational angiography guidance for aneurysm surgery", Journal of Neurosurgery, 105(3), pp.406~411 (2006)
- Hirai T, "Clinical usefulness of unsubtracted 3D digital angiography compared with rotational digital angiography in the pretreatment evaluation of intracranial aneurysms", AJNR Am J Neuroradiol, 24, pp.1067~1074 (2003)
- Bozlar U, "Pancreas allografts:Comparison of threedimensional rotational angiography with standard digital subtraction angiography", J Vasc Interv Radiol, 19(2), pp.239~244 (2008)
- Lee JH, "Percutaneous transluminal angioplasty for symptomatic middle cerebral artery stenosis : Long-term follow-up", Cerebrovasc Dis, 15, pp.90~97 (2003)
- Levy EI, "Transluminal stent-assisted angioplasty of the intracranial vertebrobasilar system for medically refractory, posterior circulation ischemia: Early results", Neurosurgery, 48, pp.1215~1223 (2001)
- Connors JJ, "Percutaneous transluminal angioplasty for intracranial atherosclerotic lesions:Evolution of technique and short-term results", J Neurosurg, 91, pp.415~423 (1999)
- Bridcut RR, "Assessment of distortion in a three-dimensional rotational angiography system", B J Radiol, 75, pp.266~270 (2002)
- "Product Manual. Xtravision Calibration and verification", Koninklijke Philips, Electronics, ~ (2008)
- Sugahara T, "Comparison of 2D and 3D digital subraction angiography in evaluation of intracranial aneurysms", AJNR Am J Neuroradiol, 23, pp.1545~1552 (2002)
- Kiyosue H, "Anatomic features predictive of complete aneurysm occlusion can be determined with three-dimensional digital subtraction angiography", AJNR Am J Neuroradiol, 23, pp.1206~1213 (2002)
- Hochmuth A, "Comparison of three-dimensional rotational angiography with digital subtraction angiography in the assessment of ruptured cerebral aneurysms", AJNR Am J Neuroradiol, 23, pp.1199~1205 (2002)
- Anxionnat R, "Intracranial aneurysms : Clinical value of 3D digital subtraction angiography in the therapeutic decision and endovascular treatment", Radiology, 218, pp.799~808 (2001)