Comparative Study Of Transrectal Ultrasound And MRI In Diagnosis Of Diseases Of Distal Spermary Tract

ObjectiveTo evaluate the diagnostic value and advantages of transrectal ultrasound(Transrectal Ultrasound,TRUS)and MRI in different lesions of distal seminal canal,so as to provide objective and reliable basis for clinical selection of imaging examination methods.Methods1.Inclusion and exclusion criteria:From August 2016 to September 2018,110 patients diagnosed by history,physical examination,laboratory examination(including seminal vesicle surgery)were selected from Urological outpatient clinic of our hospital,all patients underwent TRUS and MRI,the interval between TRUS and MRI was not more than one month.The age of the patient was 16 to 68 with an average age of 38.91?15.12.Patients with trauma,neoplasms or urogenital system were excluded.2.Experimental methods:The size,shape,symmetry and internal features of bilateral seminal vesicle and vas deferens were observed in all patients.We measured the anteroposterior diameter of seminal vesicle and transverse diameter of vas deferens ampulla.We observed the shape and internal condition of the prostate,measured the size of the prostate,calculated prostate volume(cm3)= 0.52 × inferior diameter(cm)× left and right diameter(cm)× anteroposterior diameter(cm),observed and recorded the course,width and internal abnormal appearance of ejaculatory duct.We Compared the diagnosis and clinical diagnosis of seminal vesicle gland,prostate,ejaculation tube and vas deferens ampullary lesions by two methods,the Se,Sp and coincidence rate of the two methods for the diagnosis of different lesions were calculated.The diagnostic coincidence rate of the two methods was compared.Results1.Comparison of two methods in the diagnosis of seminal vesicle adenopathy: the Se,Sp and coincidence rate of MRI in diagnosis of seminal vesicle adenositis and seminal vesicle hemorrhage were higher than that of TRUS,for seminal vesicle calculus or calcification is lower than TRUS,and the difference was statistically significant(p<0.05);The diagnostic Se and coincidence rate of TRUS were higher than that of MRI,but the Sp was lower than that of MRI,the difference of diagnostic coincidence rate of those was not statistically significant(p > 0.05).2.Comparison of two methods in the diagnosis of prostate diseases:The Se,Sp and coincidence rate of TRUS in the diagnosis of prostatic hyperplasia,prostate stone or calcification were higher than those of MRI,the difference was statistically significant(p<0.05);The diagnostic se,sp and coincidence rate of TRUS in prostatic cyst was higher than that of MRI,and in prostatitis Se was lower than that of MRI,Sp andthe coincidence rate was higher than that of MRI,the difference of diagnostic coincidence rate of prostatic cyst and prostatitis were not statistically significant(p >0.05).3.Comparison of two methods in the diagnosis of ejaculatory duct lesions:The Se,Sp and coincidence rate of TRUS in the diagnosis of ejaculatory duct dilatation,ejaculatory duct stone or calcification were higher than those of MRI,the difference was statistically significant(p < 0.05);The Se,Sp and coincidence rate of TRUS in diagnosis of ejaculatory duct cyst was higher than that of MRI,but there was no significant difference between them(p > 0.05).4.Comparison of two methods in diagnosis of vas deferens ampulla lesions:The Se,Sp and coincidence rate of TRUS in the diagnosis of dilation of the vas deferens ampulla was higher than that of MRI,the difference was statistically significant(p <0.05);However,the Se,Sp and coincidence rate of TRUS in diagnosis of absence of vas deferens ampulla was higher than that of MRI,but the difference was not statistically significant(p > 0.05).Conclusion1.The diagnostic value of MRI in seminal vesicle inflammation and seminal vesicle hemorrhage is better than that of TRUS;2.The diagnostic value of TRUS in seminal vesicle gland stone or calcification,benign prostatic hyperplasia,prostate stone or calcification,ejaculation tube dilatation,ejaculatory duct stone or calcification dilatation,vas deferens ampullary dilatation is higher than MRI.3.The two methods are of equal value in the diagnosis of seminal vesicle cyst,seminal vesicle gland dysplasia or absence,prostate cyst,prostatitis,ejaculatory duct cyst and vas deferens ampulla absence.