Application of shear wave elastic imaging ultrasound in male anterior urethral stenosis
Objective To explore the application value of shear wave elastography(SWE)in male anterior urethral stenosis.Methods A total of 40 male patients with anterior urethral stenosis admitted to the Sixth People's Hospital Affiliated to Medical College of Shanghai Jiaotong University from September 2022 to March 2023 were collected.SWE examination was performed before operation to measure the elasticity of urethra and surrounding normal tissues,and to evaluate the location and length of urethralstenosis.When the patient underwent urethral repair and reconstruction surgery,the lesion site of urethral stenosis was measured during the operation to confirm the actual location and length of the lesion during the operation,and the lesion site and length of the urethral stenosis were compared with the preoperative SWE assessment.The specimen of urethral lesion excised during the operation was sent for pathological examination to further confirm whether the tissue was pathological scar tissue.Results The elastic value of urethral stricture in SWE[(32.9±6.2)kPa]was higher than that of normal urethra[(21.5±4.3)kPa],and the difference was statistically significant(P＜0.05).The length of urinary tract stricture measured by preoperative SWE examination[(3.51±1.09)cm]was basically the same as that of urethral stricture measured during operation[(3.51±1.10)cm],with no statistical significance(P=0.825).The pathological examination proved that the surgically resected tissue was indeed pathological scar tissue,and the pathological results of the site of urethral stenosis determined by the preoperative SWE examination were 100％consistent with those of the postoperative stenosis.Conclusions SWE can well evaluate the length of male anterior urethral stenosis and the location of the diseased urethra before surgery,and provide accurate guidance for the scope of urethral lesion and pathological scar resection during surgery.
万方数据
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