Kim S H, Cho S W, Kim H D, Chung J W, Park J H, Han M C
Department of Radiology, Seoul National University College of Medicine, South Korea.
Radiology. 1996 Jan;198(1):93-7. doi: 10.1148/radiology.198.1.8539413.
To assess diagnosis of the nutcracker (renal vein entrapment) syndrome with Doppler ultrasonography (US).
Doppler US findings in 16 patients with the nutcracker syndrome and in 18 healthy control subjects were compared. The anteroposterior (AP) diameter and peak velocity (PV) were measured at the hilar portion of the left renal vein (LRV) and at the LRV between the aorta and the superior mesenteric artery.
The mean AP diameters of the LRV were 10.0 mm +/- 2.0 (standard deviation) and 1.9 mm +/- 1.0 (ratio, 5.0 +/- 2.3) in the patient group and 7.2 mm +/- 1.8 and 2.3 mm +/- 0.6 (ratio, 3.3 +/- 1.1) in the control group. The PVs at the two locations were 14.2 cm/sec +/- 2.5 and 110.7 cm/sec +/- 35.8 (ratio, 7.9 +/- 2.7) in the patient group and 18.6 cm/sec +/- 3.7 and 50.9 cm/sec +/- 27.9 (ratio, 2.8 +/- 1.5) in the control group. Differences in AP diameter and PV were statistically significant between the two groups (P < .01).
Doppler US of the LRV with measurement of the AP diameter and PV may be useful in diagnosing the nutcracker syndrome.
通过多普勒超声（US）评估胡桃夹（肾静脉受压）综合征的诊断。
比较16例胡桃夹综合征患者和18例健康对照者的多普勒超声检查结果。测量左肾静脉（LRV）肾门部以及腹主动脉与肠系膜上动脉之间LRV的前后径（AP）和峰值流速（PV）。
患者组LRV的平均AP直径分别为10.0 mm±2.0（标准差）和1.9 mm±1.0（比值，5.0±2.3），对照组分别为7.2 mm±1.8和2.3 mm±0.6（比值，3.3±1.1）。患者组两个部位的PV分别为14.2 cm/sec±2.5和110.7 cm/sec±35.8（比值，7.9±2.7），对照组分别为18.6 cm/sec±3.7和50.9 cm/sec±27.9（比值，2.8±1.5）。两组之间AP直径和PV的差异具有统计学意义（P <.01）。
测量LRV的AP直径和PV的多普勒超声检查可能有助于诊断胡桃夹综合征。
