CT angiography of intracranial arterial vessels: impact of tube voltage and contrast media concentration on image quality

2012 ◽  
Vol 53 (8) ◽  
pp. 929-934 ◽  
Author(s):  
Birgitta Ramgren ◽  
Isabella M Björkman-Burtscher ◽  
Stig Holtås ◽  
Roger Siemund
Keyword(s):  
Image Quality ◽  
Contrast Media ◽  
Ct Angiography ◽  
Tube Voltage ◽  
Media Concentration

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

Reduction of absorbed dose in storage phosphor urography by significant lowering of tube voltage and adjustment of image display parameters

2005 ◽  
Vol 46 (4) ◽  
pp. 391-395 ◽  
Author(s):  
H. J. Wiltz ◽  
U. Petersen ◽  
B. Axelsson
Keyword(s):  
Image Quality ◽  
Contrast Media ◽  
Absorbed Dose ◽  
Quality Criteria ◽  
Patient Dose ◽  
Image Display ◽  
Modified Technique ◽  
Tube Voltage ◽  
Storage Phosphor ◽  
Dose Area Product

Purpose: To investigate whether image quality in storage phosphor urography can be maintained when the X‐ray tube voltage is significantly lowered to give a lower patient dose. Material and Methods: Initial phantom studies were used to establish exposure settings at 53 kV that gave signal‐to‐noise ratios for contrast media structures equivalent to those obtained at the reference kilovoltage of 69 kV. Dose area product and image quality, assessed by image quality criteria and visual grading, were then recorded for 44 patients drawn at random to be examined by either the standard or modified technique. Results: Absorbed dose could be reduced by more than 30% without any significant change in image quality in manually controlled exposures and by 13% in exposures controlled by AEC. Conclusion: It might be possible to lower the tube voltage in digital examinations involving contrast media as a means of lowering patient dose. The image display parameters need to be adjusted to maintain image quality.

Reduced radiation dose and improved image quality at cardiovascular CT angiography by automated attenuation-based tube voltage selection: intra-individual comparison

2014 ◽  
Vol 24 (11) ◽  
pp. 2677-2684 ◽  
Author(s):  
Aleksander W. Krazinski ◽  
Felix G. Meinel ◽  
U. Joseph Schoepf ◽  
Justin R. Silverman ◽  
Christian Canstein ◽  
...  
Keyword(s):  
Image Quality ◽  
Radiation Dose ◽  
Ct Angiography ◽  
Tube Voltage ◽  
Individual Comparison ◽  
Cardiovascular Ct
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