Background
Methods
Magnetic resonance imaging
Image Analysis
Perfusion and late Gadolinium enhancement
CMR coronary angiography
Invasive coronary angiography
Statistics
Results
Entire group (n = 54) | CAD (n = 26) | No CAD (n = 28) | p | |
---|---|---|---|---|
Male/female
| 35/19 | 22/4 | 13/15 |
0.004
|
Age (years)
| 60 ± 10 (37–78) | 60 ± 9 (41–77) | 60 ± 11 (37–78) | 0.73 |
Weight (kg)
| 81 ± 15 (54–118) | 86 ± 15 (54–118) | 76 ± 14 (55–104) |
0.03
|
BMI
| 27.6 ± 4.1 (21.1–36.7) | 28.4 ± 4.2 (21.1–36.7) | 26.8 ± 3.9 (21.5–34.9) | 0.10 |
Typical angina
| 30 (56%) | 20 (77%) | 10 (36%) |
0.003
|
Atypical angina
| 15 (28%) | 4 (15%) | 11 (39%) | 0.05 |
Dyspnoea on exertion
| 21 (39%) | 6 (23%) | 15 (54%) |
0.02
|
DM
| 12 (22%) | 5 (19%) | 7 (25%) | 0.61 |
Hypertension
| 37 (69%) | 22 (85%) | 15 (54%) |
0.02
|
Smoker
| 18 (33%) | 11 (42%) | 7 (25%) | 0.18 |
Hypercholesterinemia
| 41 (76%) | 21 (81%) | 20 (71%) | 0.43 |
Family history
| 17 (31%) | 9 (35%) | 8 (29%) | 0.64 |
Pathological ECG
| 16 (30%) | 9 (35%) | 7 (25%) | 0.68 |
LV ejection fraction
| 59 ± 9% (31–71) | 57 ± 10% (31–67) | 61 ± 7% (39–71) | 0.18 |
Positive nuclear study
| 13 (24%) | 6 (23%) | 7 (25%) | |
Positive stress echo
| 5 (9%) | 1 (4%) | 4 (14%) | |
Positive exercise test
| 8 (15%) | 6 (23%) | 2 (7%) |
Sensitivity (%) (95% CI) | Specificity (%) (95% CI) | Accuracy (%) (95% CI) | |
---|---|---|---|
PERF (n = 49) | 87 (65;97) [20/23] | 88 (69;97) [23/26)] | 88 (75;95) [43/49] |
LGE (n = 54) | 50 (30;70) [13/26] | 96 (80;100) [27/28] | 74 (60;85) [40/54] |
MRCA (n = 46) | 91 (69;98) [20/22] | 54 (33;74) [13/24] | 70 (54;82) [32/46] |
PERF/LGE (n = 51) | 88 (68;97) [22/25] | 88 (69;97) [23/26] | 88 (75;95) [45/51] |
PERF/LGE/MRCA (n = 51) | 92 (73;99) [24/26] | 60 (39;78) [15/25] | 75 (60;80) [38/51] |
Perfusion/late gadolinium enhancement
MRCA
LAD | LCX | RCA | ||||
---|---|---|---|---|---|---|
Sens
|
Spec
|
Sens
|
Spec
|
Sens
|
Spec
| |
PERF
(n = 49) |
86 (56;97)
[12/14] |
97 (83;100)
[34/35] |
73 (39;93)
[8/11] |
89 (74;97)
[34/38] |
75 (43;93)
[9/12] |
92 (77;98)
[34/37] |
LGE
(n = 54) |
31 (12;59)
[5/16] |
100 (89;100)
[38/38] |
38 (15;68)
[5/13] |
100 (89;100)
[41/41] |
50 (22;78)
[6/12] |
95 (83;99)
[40/42] |
MRCA
(n = 46) |
100 (72;100)
[13/13] |
64 (45;79)
[21/33] |
75 (43;93)
[9/12] |
85 (68;94)
[29/34] |
82 (48;97)
[9/11] |
83 (66;93)
[29/35] |
PERF/LGE
(n = 51) |
87 (58;98)
[13/15] |
94 (80;99)
[34/36] |
69 (39;90)
[9/13] |
89 (74;97)
[34/38] |
75 (43;93)
[9/12] |
85 (69;94)
[33/39] |
PERF/LGE/MRCA
(n = 51) |
100 (76;100)
[16/16] |
60 (42;76)
[21/35] |
85 (54;97)
[11/13] |
75 (57;87)
[27/36] |
100 (70;100)
[12/12] |
72 (55;85)
[26/36] |
Sensitivity (%) (95% CI) | Specificity (%) (95% CI) | |
---|---|---|
PERF/LGE (IQ in MRCA excellent) | 71 (30;95) [5/7] | 100 (68;100) [11/11] |
MRCA (§) (IQ in MRCA excellent) | 86 (42;99) [6/7] | 91 (57;100) [10/11] |
PERF/LGE/MRCA (§) (IQ in MRCA excellent) | 86 (42;99) [6/7] | 91 (57;100) [10/11] |
PERF/LGE (IQ in MRCA excellent or good) | 87 (58;98) [13/15] | 90 (68;98) [19/21] |
MRCA (*) (IQ in MRCA excellent or good) | 93 (66 ;100) [14/15] | 57 (34 ;77) [12/21] |
PERF/LGE/MRCA (*) (IQ in MRCA excellent or good) | 93 (66;100) [14/15] | 57 (34;77) [12/21] |