Effect of low tube voltage and low iodine concentration abdominal CT on image quality and radiation dose in children: preliminary study

2019 ◽  
Vol 44 (5) ◽  
pp. 1928-1935 ◽  
Author(s):  
Sun Kyoung You ◽  
Young Hun Choi ◽  
Jung-Eun Cheon ◽  
Woo Sun Kim ◽  
In-One Kim ◽  
...  
Keyword(s):  
Image Quality ◽  
Radiation Dose ◽  
Iodine Concentration ◽  
Abdominal Ct ◽  
Tube Voltage ◽  
Low Tube Voltage ◽  
Preliminary Study

Abdominal CT with Low Tube Voltage: Preliminary Observations about Radiation Dose, Contrast Enhancement, Image Quality, and Noise

Radiology ◽  
2005 ◽  
Vol 237 (3) ◽  
pp. 945-951 ◽  
Author(s):  
Yoshiharu Nakayama ◽  
Kazuo Awai ◽  
Yoshinori Funama ◽  
Masahiro Hatemura ◽  
Masanori Imuta ◽  
...  
Keyword(s):  
Image Quality ◽  
Radiation Dose ◽  
Contrast Enhancement ◽  
Abdominal Ct ◽  
Tube Voltage ◽  
Low Tube Voltage

scholarly journals The feasibility of low-concentration contrast and low tube voltage in computed tomography perfusion imaging: an animal study

2018 ◽  
Vol 38 (1) ◽  
Author(s):  
Yuning Pan ◽  
Aiqin Song ◽  
Shizhong Bu ◽  
Zhaoqian Chen ◽  
Qiuli Huang ◽  
...  
Keyword(s):  
Image Quality ◽  
Radiation Dose ◽  
Perfusion Imaging ◽  
Ct Perfusion ◽  
Iodine Intake ◽  
Tube Voltage ◽  
Effective Radiation Dose ◽  
Low Concentration ◽  
Low Tube Voltage ◽  
Effective Radiation

Aim: To investigate the feasibility of low-concentration contrast (270 mg/ml) together with low tube voltage (80 kV) and adaptive iterative dose reduction (AIDR)-3D reconstruction in liver computed tomography (CT) perfusion imaging. Method: A total of 15 healthy New Zealand rabbits received two CT scans each. The first scan (control) was acquired at 100 kV and 100 mA with iopromide (370 mg/ml), while the second scan (experimental) was acquired at 80 kV and 100 mA with iodixanol (270 mg/ml) 24 h after the first scan. The obtained images were reconstructed with filtered back projection (FBP) and AIDR-3D in the control and experimental groups respectively. The perfusion parameters (hepatic artery perfusion [HAP], portal vein perfusion [PVP], hepatic perfusion index [HPI], and total liver perfusion [TLP]) and image quality (image quality score, average CT value of abdomen aorta, signal-to-noise ratio [SNR], contrast-to-noise ratio [CNR], and figure of merit [FOM]) were compared using a paired t-test or Mann–Whitney U test between the two groups, when appropriate. The effective radiation dose and iodine intake were also recorded and compared. Results: With the exception of the FOM criteria, the image quality and perfusion parameters were not significantly different between the two groups. The effective radiation dose and iodine intake were 38.79% and 27.03% lower respectively, in the experimental group. Conclusion: Low-concentration contrast (iodixanol, 270 mg/ml) together with low tube voltage (80 kV) and AIDR-3D reconstruction help to reduce radiation dose and iodine intake without compromising perfusion parameters and image quality in liver CT perfusion imaging.

scholarly journals Study of Image Quality, Radiation Dose and Low Contrast Resolution from MSCT Head by Using Low Tube Voltage

2018 ◽  
Vol 979 ◽  
pp. 012078
Author(s):  
Jumriah ◽  
Syamsir Dewang ◽  
Bualkar Abdullah ◽  
Dahlang Tahir
Keyword(s):  
Image Quality ◽  
Radiation Dose ◽  
Tube Voltage ◽  
Contrast Resolution ◽  
Low Contrast ◽  
Low Tube Voltage
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