title: [Analysis of the clinical information of 1,066 cases undergoing prostate magnetic resonance examination].
abstract: OBJECTIVE
  To evaluate the variation of clinical data and referred purpose of prostate magnetic resonance (MR) examination in the past 12 years in Peking University First Hospital.
  
  
  METHODS
  One thousand and sixty-six patients underwent prostate MR examination (1,296 exams) from May 1992 to Sept. 2004. The clinical data of the patients were retrospectively analyzed. The number of patients was counted and three groups were classified (diagnosing group, staging group and follow-up group) according to the purpose of prostate MR examination per year. For the diagnosing group, the clinical data of patient's age, symptom, level of serum prostate specific antigen (PSA), and the result of ultrasound or digital rectal examination (DRE) were evaluated.
  
  
  RESULTS
  (1)The number of patients increased year by year in the past 12 years, and the majority of the increased patients required differential diagnosis. (2) Diagnosing group: the percentage of patients with the symptom of BPH increased year by year. The average level of serum PSA dropped and the percentage of patients with elevated PSA or with nodules detected by ultrasound or DRE referred for detection of prostate cancer or with the symptom of metastasis decreased.
  
  
  CONCLUSIONS
  With the widespread screening of prostate cancer, more patients of early prostate carcinoma and non-tumoral lesion in prostate gland are examined by MR imaging.
authors.affiliation: Department of Radiology, Peking University First Hospital, Beijing 100034, China.
authors.forename: Yan-jun
authors.initials: YJ
authors.lastname: Tong
authors.forename: Xiao-ying
authors.initials: XY
authors.lastname: Wang
authors.forename: Fei-yu
authors.initials: FY
authors.lastname: Li
authors.forename: Xue-xiang
authors.initials: XX
authors.lastname: Jiang
mesh_terms: D000328:Adult; D000368:Aged; D000369:Aged, 80 and over; D002681:China / Q000453:epidemiology; D003937:Diagnosis, Differential; D006801:Humans; D008279:Magnetic Resonance Imaging; D008297:Male; D008403:Mass Screening; D008875:Middle Aged; D011467:Prostate / Q000473:pathology*; D017430:Prostate-Specific Antigen / Q000097:blood; D011471:Prostatic Neoplasms / Q000097:blood / Q000175:diagnosis* / Q000453:epidemiology; D012189:Retrospective Studies
chemical_list: D017430:Prostate-Specific Antigen