64-Slice spiral computed tomography of the coronary arteries: dose reduction using an optimized imaging protocol including individual weight-adaptation of voltage and current-time product.
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64-Slice spiral computed tomography of the coronary arteries: dose reduction using an optimized imaging protocol including individual weight-adaptation of voltage and current-time product. / Lund, Gunnar; Wegian, Eckhard; Saeed, Maythem; Wassermeyer, Jens; Adam, Gerhard; Stork, Alexander.
In: EUR RADIOL, Vol. 19, No. 5, 5, 2009, p. 1132-1138.Research output: SCORING: Contribution to journal › SCORING: Journal article › Research › peer-review
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T1 - 64-Slice spiral computed tomography of the coronary arteries: dose reduction using an optimized imaging protocol including individual weight-adaptation of voltage and current-time product.
AU - Lund, Gunnar
AU - Wegian, Eckhard
AU - Saeed, Maythem
AU - Wassermeyer, Jens
AU - Adam, Gerhard
AU - Stork, Alexander
PY - 2009
Y1 - 2009
N2 - Radiation dose and image quality were compared between a standard protocol (40 patients, group A) and a weight-adapted protocol of voltage and current-time product (44 patients, group B) using 64-slice coronary multidetector computed tomography (MDCT). Effective dose estimate was lower by 37% in all patients of group B (9.2 +/- 2.5 mSv) compared with group A (14.6 +/- 2.3 mSv, P <0.0001). Group B patients with a small body mass index (BMI) benefited most with a dose reduction of 53% (6.7 +/- 1.5 mSv in group B versus 14.1 +/- 1.8 mSv in group A, P <0.0001). Moderate reductions of 32% and 20% were achieved for patients with a medium and large BMI, respectively. Reduction in radiation dose did not affect the image quality as assessed by image noise, signal-to-noise ratios, and number of coronary segments with good diagnostic image quality. Individual weight-adaptation of voltage and current-time product significantly reduces the radiation dose without loss of image quality.
AB - Radiation dose and image quality were compared between a standard protocol (40 patients, group A) and a weight-adapted protocol of voltage and current-time product (44 patients, group B) using 64-slice coronary multidetector computed tomography (MDCT). Effective dose estimate was lower by 37% in all patients of group B (9.2 +/- 2.5 mSv) compared with group A (14.6 +/- 2.3 mSv, P <0.0001). Group B patients with a small body mass index (BMI) benefited most with a dose reduction of 53% (6.7 +/- 1.5 mSv in group B versus 14.1 +/- 1.8 mSv in group A, P <0.0001). Moderate reductions of 32% and 20% were achieved for patients with a medium and large BMI, respectively. Reduction in radiation dose did not affect the image quality as assessed by image noise, signal-to-noise ratios, and number of coronary segments with good diagnostic image quality. Individual weight-adaptation of voltage and current-time product significantly reduces the radiation dose without loss of image quality.
M3 - SCORING: Zeitschriftenaufsatz
VL - 19
SP - 1132
EP - 1138
JO - EUR RADIOL
JF - EUR RADIOL
SN - 0938-7994
IS - 5
M1 - 5
ER -