The analysis of artifacts in 64-slice spiral CT coronary angiography / 中华放射学杂志
Chinese Journal of Radiology
; (12): 923-926, 2008.
Article
in Chinese
| WPRIM (Western Pacific)
| ID: wpr-398922
Responsible library:
WPRO
ABSTRACT
Objective To investigate the reasons of artifacts in 64-slice spiral CT coronary angiography.Methods One hundred patients with diagnosed or suspected coronary artery disease underwent retrospectively ECG-gated 64-slice spiral CT coronary angiogruphy.Maximum intensity projection(MIP),muhiplanar reformation(MPR)and volume rendering technique(VRT)were reconstructed.The reasons of artifacts were assessed by two experienced radiologists.Results A total of 1347 segments(1347/1500,89.8%)were reviewed,the artifacts were found in 192 segments(14.2%).Breath movement was the moat common artifact(124/192).and the other reasons included fast rate and irregular rhythm of the heart beat (42/192).while the phase mismatch was the third reason(22/192).Conclusions The common artifacts of 64-slice spiral CT coronary angiography includes breath movement,fast rate and irregular rhythm of heart beat and phage mismatch.Breath-holding control,low rate and regular rhythm of heart beat,muhiphage reconstruction are suggested for the accurate diagnosis.
Full text:
Available
Database:
WPRIM (Western Pacific)
Language:
Chinese
Journal:
Chinese Journal of Radiology
Year:
2008
Document type:
Article