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Comparison of dual-axis rotational coronary angiography ( XPERSWING ) versus conventional technique in routine practice . INTRODUCTION AND OBJECTIVES Coronary angiography is the gold standard for the study of coronary artery disease . This technique requires several orthogonal projections . Rotational angiography is a new technique which involves pre-set rotation of the X-ray tube around the patient and allows visualization of each coronary artery in different views , using a single contrast injection . The purpose of this study was to compare conventional coronary angiography ( A ) vs rotational angiography ( B ) , focusing on radiation dose , amount of contrast administered , and total procedure time for both diagnostic and therapeutic percutaneous coronary interventions . METHODS Prospective study of 104 consecutive patients undergoing coronary angiography who were randomized to one of these techniques . RESULTS We found a significant reduction in the amount of contrast administered ( A vs B , 93.1 [ 41.7 ] vs 50.9 [ 14.7 ] mL ; P < .0001 ) and radiation exposure ( 27.6 [ 11.5 ] vs 18 [ 6.4 ] mGycm ( 2 ) ; P < .0001 ) . A significant increase in total procedure time was noted in the rotational angiography arm . However , when only the last 50 patients were analyzed , we found no difference in procedure time between the groups , probably related to the learning curve of the operators . Angioplasty was performed in 29 patients in group A and 28 patients in group B . Contrast reduction was maintained in the rotational angiography group compared to the conventional technique ( A vs B , 335.1 [ 192.1 ] vs 238.5 [ 114.4 ] mL ; P=.02 ) . CONCLUSIONS The rotational angiography technique leads to a significant decrease in radiation exposure and contrast dose administered for diagnostic procedures when compared to conventional coronary angiography . In patients who undergo percutaneous coronary intervention , contrast reduction remains significant .
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Intervention_Physical
dual-axis rotational coronary angiography ( XPERSWING )
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Intervention_Physical
conventional
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Intervention_Physical
angiography
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Intervention_Physical
Rotational angiography
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Intervention_Physical
conventional coronary angiography ( A ) vs rotational angiography
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Intervention_Physical
coronary angiography
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Intervention_Physical
rotational angiography
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Intervention_Physical
conventional coronary angiography
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Outcome_Other
amount of contrast administered
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Outcome_Other
radiation exposure
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Outcome_Other
total procedure time
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Outcome_Other
procedure time
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Outcome_Physical
Angioplasty
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Outcome_Other
Contrast reduction
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Outcome_Physical
radiation exposure
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Outcome_Other
contrast dose
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Participant_Condition
Prospective study of 104 consecutive patients undergoing coronary angiography who were randomized