Table 1

Comparison of the results using the catheter with published results for quantitative coronary angiography (QCA) systems

SystemAccuracy (mm)Precision (mm)
Moulding catheter
1.5–4.0 mm phantoms0.190.34
2.5–4.0 mm phantoms0.010.06
QCA system
Ozaki6 −0.11 to −0.10.08 to 0.18
Keane7 −0.08 to 0.070.40 to 0.09
−0.12 to −0.030.10 to 0.39
Reiber8 0.00 to 0.030.020 to 0.189
Keane9 1-150
 50% contrast−0.41 to 0.010.06 to 0.20
 100% contrast−0.23 to −0.010.07 to 0.28
Reiber10 −0.030.09
Uehata11 0.050.09
Haase12 1-151
 CMS 100% contrast0.180.14
 CMS 50% contrast0.190.15
 DCI 100% contrast0.110.06
 DCI 50% contrast0.240.13

  • ↵1-150 Results for 50% and 100% contrast in the same phantoms.

  • ↵1-151 Results comparing 50% and 100% contrast in cinefilm based Cardiovascular Measurement System (CMS) and Philips digital cardiac imaging system (DCI).