PURPOSE: To assess the diagnostic value and measurement precision of 3D volume rendering technique (3D-VRT) from retrospectively ECG-gated multislice spiral CT (MSCT) data sets for imaging of the coronary arteries. MATERIAL AND METHODS: In 35 patients, retrospectively ECG-gated MSCT of the heart using a four detector row MSCT scanner with a standardized examination protocol was performed as well as quantitative X-ray coronary angiography (QCA). The MSCT data was assessed on segmental basis using 3D-VRT exclusively. The coronary artery diameters were measured at the origin of each main coronary branch and 1 cm, 3 cm and 5 cm distally. The minimum, maximum and mean diameters were determined from MSCT angiography and compared to QCA. RESULTS: A total of 353 of 525 (67.2%) coronary artery segments were assessable by MSCT angiography. The proximal segments were more often assessable when compared to the distal segments. Stenoses were detected with a sensitivity of 82.6% and a specificity of 92.8%. According to the Bland-Altman method the mean differences between QCA and MSCT ranged from -0.55 to 1.07 mm with limits of agreement from -2.2 mm to -2.7 mm. CONCLUSION: When compared to QCA, the ability of 3D-VRT to quantitatively assess coronary artery diameters and coronary artery stenoses is insufficient for clinical purposes.
PURPOSE: To assess the diagnostic value and measurement precision of 3D volume rendering technique (3D-VRT) from retrospectively ECG-gated multislice spiral CT (MSCT) data sets for imaging of the coronary arteries. MATERIAL AND METHODS: In 35 patients, retrospectively ECG-gated MSCT of the heart using a four detector row MSCT scanner with a standardized examination protocol was performed as well as quantitative X-ray coronary angiography (QCA). The MSCT data was assessed on segmental basis using 3D-VRT exclusively. The coronary artery diameters were measured at the origin of each main coronary branch and 1 cm, 3 cm and 5 cm distally. The minimum, maximum and mean diameters were determined from MSCT angiography and compared to QCA. RESULTS: A total of 353 of 525 (67.2%) coronary artery segments were assessable by MSCT angiography. The proximal segments were more often assessable when compared to the distal segments. Stenoses were detected with a sensitivity of 82.6% and a specificity of 92.8%. According to the Bland-Altman method the mean differences between QCA and MSCT ranged from -0.55 to 1.07 mm with limits of agreement from -2.2 mm to -2.7 mm. CONCLUSION: When compared to QCA, the ability of 3D-VRT to quantitatively assess coronary artery diameters and coronary artery stenoses is insufficient for clinical purposes.
Authors: Gabija Pundziute; Joanne D Schuijf; Jeroen J Bax; Ernst E van der Wall Journal: Int J Cardiovasc Imaging Date: 2006-03-15 Impact factor: 2.357
Authors: Stephanie Busch; Thorsten R C Johnson; Konstantin Nikolaou; Franz von Ziegler; Andreas Knez; Maximilian F Reiser; Christoph R Becker Journal: Eur Radiol Date: 2006-12-16 Impact factor: 5.315
Authors: Franz von Ziegler; Alexander W Leber; Alexander Becker; Ingo Kaczmarek; Ulf Schönermarck; Christine Raps; Janine Tittus; Peter Uberfuhr; Christoph R Becker; Maximilian Reiser; Gerhard Steinbeck; Andreas Knez Journal: Int J Cardiovasc Imaging Date: 2008-07-19 Impact factor: 2.357
Authors: Jin Woo Choi; Joon Beom Seo; Kyung-Hyun Do; Sang Il Choi; Whal Lee; Sung Min Ko; Soo Hyun Lee; Jin Seong Lee; Jae-Woo Song; Koun Sik Song; Tae-Hwan Lim Journal: Korean J Radiol Date: 2006 Jan-Mar Impact factor: 3.500