Table 1.

Number of patients where distinctive coronary artery segments were scored as diagnostic per dose level

	Mean diameter (mm)	100 %	50 %	25 %	12.5 %
1. Proximal RCA	3.0 ± 0.8	35	35	33	18
2. Mid RCA	2.8 ± 0.8	35	34	30	19
3. Distal RCA	2.6 ± 0.7	33	33	27	16
4. Right PDA	1.3 ± 0.5	23	19	15	8
5. Left main	3.7 ± 0.8	39	37	34	24
6. Proximal LAD	3.0 ± 0.6	38	38	33	21
7. Mid LAD	2.5 ± 0.5	36	35	27	15
8. Distal LAD	1.7 ± 0.4	34	32	24	14
9. 1st diagonal	1.4 ± 0.5	33	30	23	14
10. 2nd diagonal	1.1 ± 0.4	30	21	18	7
11. Proximal Cx	2.2 ± 1.0	35	36	29	16
12. Mid Cx	1.4 ± 0.6	28	22	21	6
13. Obtuse marginal	1.5 ± 0.8	21	22	14	3
14. Posterolateral	1.5 ± 0.8	8	5	2	1
15. Left PDA	0.8 ± 0.5	2	1	1	0

Datasets of 40 patients were evaluated per dose level. Missing segments are partly due to non-diagnostic quality and partly due to the absence of segments