Application of Low Tube Voltage, Low-concentration Contrast Agent Using a 320-row CT in Coronary CT Angiography: Evaluation of Image Quality, Radiation Dose and Iodine Intake

2020 ◽  
Vol 40 (1) ◽  
pp. 178-183
Author(s):  
Yue-ying Pan ◽  
Shu-chang Zhou ◽  
Yu-jin Wang ◽  
Qian Li ◽  
Ting-ting Zhu ◽  
...  
Keyword(s):  
Image Quality ◽  
Radiation Dose ◽  
Contrast Agent ◽  
Ct Angiography ◽  
Coronary Ct Angiography ◽  
Iodine Intake ◽  
Tube Voltage ◽  
Low Concentration ◽  
Low Tube Voltage ◽  
Coronary Ct

Image quality and radiation dose of low tube voltage 3rd generation dual-source coronary CT angiography in obese patients: a phantom study

2014 ◽  
Vol 24 (7) ◽  
pp. 1643-1650 ◽  
Author(s):  
Felix G. Meinel ◽  
Christian Canstein ◽  
U. Joseph Schoepf ◽  
Martin Sedlmaier ◽  
Bernhard Schmidt ◽  
...  
Keyword(s):  
Image Quality ◽  
Radiation Dose ◽  
Ct Angiography ◽  
Coronary Ct Angiography ◽  
Phantom Study ◽  
Obese Patients ◽  
Tube Voltage ◽  
Low Tube Voltage ◽  
Coronary Ct ◽  
Dual Source

scholarly journals Low tube voltage prospectively ECG-triggered coronary CT angiography: a systematic review of image quality and radiation dose

2018 ◽  
pp. 20170874 ◽  
Author(s):  
Sock Keow Tan ◽  
Chai Hong Yeong ◽  
Raja Rizal Azman Raja Aman ◽  
Kwan Hoong Ng ◽  
Yang Faridah Abdul Aziz ◽  
...  
Keyword(s):  
Systematic Review ◽  
Image Quality ◽  
Radiation Dose ◽  
Ct Angiography ◽  
Coronary Ct Angiography ◽  
Tube Voltage ◽  
Low Tube Voltage ◽  
Coronary Ct

scholarly journals Image Quality and Radiation Exposure With a Low Tube Voltage Protocol for Coronary CT Angiography

2010 ◽  
Vol 3 (11) ◽  
pp. 1113-1123 ◽  
Author(s):  
Jörg Hausleiter ◽  
Stefan Martinoff ◽  
Martin Hadamitzky ◽  
Eugenio Martuscelli ◽  
Iris Pschierer ◽  
...  
Keyword(s):  
Image Quality ◽  
Radiation Exposure ◽  
Ct Angiography ◽  
Coronary Ct Angiography ◽  
Tube Voltage ◽  
Low Tube Voltage ◽  
Coronary Ct

Coronary CT angiography by modifying tube voltage and contrast medium concentration: Evaluation of image quality and radiation dose

2019 ◽  
Vol 36 (7) ◽  
pp. 1391-1396 ◽  
Author(s):  
Seyede Shokoofeh Mousavi Gazafroudi ◽  
Mohammad Bagher Tavakkoli ◽  
Maryam Moradi ◽  
Seyede Shabnam Mousavi Gazafroudi ◽  
Ghasem Yadegarfar ◽  
...  
Keyword(s):  
Image Quality ◽  
Radiation Dose ◽  
Contrast Medium ◽  
Ct Angiography ◽  
Coronary Ct Angiography ◽  
Tube Voltage ◽  
Medium Concentration ◽  
Coronary Ct ◽  
Contrast Medium Concentration

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.

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