Table 3.
Diagnostic performance (i.e. sensitivity and specificity) of regional PWV testing in predicting regional aortic dilatation
| N | Aortic Segment | Incidence of increased | Sensitivity (CI) | Specificity (CI) | Positive predictive value (CI) | Negative predictive value (CI) | |
|---|---|---|---|---|---|---|---|
| PWV | Diameter | ||||||
| 39 | S1: Ascending aorta | 8 (21 %) | 15 (38 %) | 13 % (2–42 %) |
75 % (53–89 %) |
25 % (4–64 %) |
58 % (39–75) |
| 37 | S2: Aortic arch | 11 (28 %) | 6 (16 %) | 17 % (1–64 %) |
68 % (49–83 %) |
9 % (0–43) |
81 % (60–93) |
| 40 | S3: Thoracic descending aorta | 7 (18 %) | 4 (10 %) | 75 % (22–99 %) |
89 % (73–96 %) |
43 % (12–80 %) |
97 % (82–100 %) |
| 40 | S4: Suprarenal abdominal aorta | 6 (15 %) | 2 (5 %) | 0 % (0–80 %) |
84 % (68–93 %) |
0 % (0–48 %) |
94 % (79–99 %) |
| 38 | S5: Infrarenal abdominal aorta | 4 (10 %) | 1 (3 %) | 100 % (5–100 %) |
92 % (77–98 %) |
25 % (1–78 %) |
100 % (87–100 %) |
Data are presented as number (percentage).
N number of patients analysed, CI, 95 % confidence interval, PWV pulse wave velocity, S1 ascending aorta, S2 aortic arch, S3 thoracic descending aorta, S4 suprarenal abdominal aorta, S5 infrarenal abdominal aorta.