Image quality and radiation dose of 128-slice dual-source CT venography using low kilovoltage combined with high-pitch scanning and automatic tube current modulation

2013 ◽  
Vol 29 (S1) ◽  
pp. 47-51 ◽  
Author(s):  
Chan Kue Park ◽  
Ki Seok Choo ◽  
Ung Bae Jeon ◽  
Seung Kug Baik ◽  
Yong Woo Kim ◽  
...  
Keyword(s):  
Image Quality ◽  
Radiation Dose ◽  
Tube Current Modulation ◽  
Dual Source Ct ◽  
High Pitch ◽  
Ct Venography ◽  
Automatic Tube Current Modulation ◽  
Tube Current ◽  
Dual Source ◽  
Low Kilovoltage

scholarly journals Image Quality and Radiation Dose of Lower Extremity CT Angiography in 128 Slice Dual-Source CT: Comparison of High Pitch and Low Pitch

2014 ◽  
Vol 71 (3) ◽  
pp. 120 ◽  
Author(s):  
Jung Hwan Park ◽  
Ki Seok Choo ◽  
Ung Bae Jeon ◽  
Seung Kug Baik ◽  
Yong Woo Kim ◽  
...  
Keyword(s):  
Image Quality ◽  
Radiation Dose ◽  
Lower Extremity ◽  
Ct Angiography ◽  
Dual Source Ct ◽  
High Pitch ◽  
Dual Source

scholarly journals Radiation dose and image quality of high-pitch emergency abdominal CT in obese patients using third-generation dual-source CT (DSCT)

2019 ◽  
Vol 9 (1) ◽  
Author(s):  
Robert Forbrig ◽  
Michael Ingrisch ◽  
Robert Stahl ◽  
Katharina Stella Winter ◽  
Maximilian Reiser ◽  
...  
Keyword(s):  
Image Quality ◽  
Radiation Dose ◽  
Third Generation ◽  
Obese Patients ◽  
Dual Source Ct ◽  
High Pitch ◽  
Subjective Image Quality ◽  
Dual Source ◽  
Group A

Abstract In this third-generation dual-source CT (DSCT) study, we retrospectively investigated radiation dose and image quality of portal-venous high-pitch emergency CT in 60 patients (28 female, mean age 56 years) with a body mass index (BMI) ≥ 30 kg/m2. Patients were dichotomized in groups A (median BMI 31.5 kg/m2; n = 33) and B (36.8 kg/m2; n = 27). Volumetric CT dose index (CTDIvol), size-specific dose estimate (SSDE), dose length product (DLP) and effective dose (ED) were assessed. Contrast-to-noise ratio (CNR) and dose-independent figure-of-merit (FOM) CNR were calculated. Subjective image quality was assessed using a five-point scale. Mean values of CTDIvol, SSDE as well as normalized DLP and ED were 7.6 ± 1.8 mGy, 8.0 ± 1.8 mGy, 304 ± 74 mGy * cm and 5.2 ± 1.3 mSv for group A, and 12.6 ± 3.7 mGy, 11.0 ± 2.6 mGy, 521 ± 157 mGy * cm and 8.9 ± 2.7 mSv for group B (p < 0.001). CNR of the liver and spleen as well as each calculated FOM CNR were significantly higher in group A (p < 0.001). Subjective image quality was good in both groups. In conclusion, third-generation abdominal high-pitch emergency DSCT yields good image quality in obese patients. Radiation dose increases in patients with a BMI > 36.8 kg/m2.

Comparison of image quality and radiation dose of different pulmonary CTA protocols on a 128-slice CT: high-pitch dual source CT, dual energy CT and conventional spiral CT

2011 ◽  
Vol 22 (2) ◽  
pp. 279-286 ◽  
Author(s):  
Tobias De Zordo ◽  
Klemens von Lutterotti ◽  
Christian Dejaco ◽  
Peter F. Soegner ◽  
Renate Frank ◽  
...  
Keyword(s):  
Image Quality ◽  
Radiation Dose ◽  
Spiral Ct ◽  
Dual Energy ◽  
Dual Energy Ct ◽  
Dual Source Ct ◽  
High Pitch ◽  
Dual Source

scholarly journals Image Quality and Radiation Dose of Lower Extremity CT Angiography in 128 Slice Dual-Source CT: Comparison of High Pitch and Low Pitch

2014 ◽  
Vol 71 (3) ◽  
pp. 124
Author(s):  
Jung Hwan Park ◽  
Ki Seok Choo ◽  
Ung Bae Jeon ◽  
Seung Kug Baik ◽  
Yong Woo Kim ◽  
...  
Keyword(s):  
Image Quality ◽  
Radiation Dose ◽  
Lower Extremity ◽  
Ct Angiography ◽  
Dual Source Ct ◽  
High Pitch ◽  
Dual Source
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