title: Evaluating the perfusion of occupying lesions of kidney and bladder with contrast-enhanced ultrasound.
abstract: OBJECTIVE
  To evaluate the clinical diagnostic value of contrast-enhanced ultrasound (CEUS) for occupying lesions of kidney and bladder.
  
  
  METHODS
  CEUS was performed for a total of 50 kidney and bladder occupying lesions in 47 cases, and CEUS manifestations of these lesions were observed and analyzed. Patterns of dynamic changes in perfusion phases of CEUS were summarized and compared with results of postoperative pathology, enhanced computed tomography (CT), magnetic resonance imaging (MRI), and follow-ups.
  
  
  RESULTS
  CEUS results showed that there were 22 cases of malignant renal tumors, 11 cases of benign lesions, two cases of renal column hypertrophy, and 12 cases of malignant bladder tumors (15 lesions). Renal cell carcinoma exhibited various CEUS manifestation, with the majority showing fast filling and hyper-enhancement. CEUS manifestation of renal hamartoma was characterized by slow filling and slow outflow. Renal cystic lesions always exhibited no enhancement within the cysts. Renal column hypertrophy exhibited the same enhancement pattern as the renal cortex. CEUS manifestation of bladder carcinoma was mainly characterized by quick filling, quick outflow, and hyperenhancement.
  
  
  CONCLUSIONS
  CEUS offers real-time observation of perfusion in occupying lesions of kidney and bladder, but the enhancement pattern of kidney occupying lesions was complex; therefore, combination of enhanced CT, MRI, and CEUS may be necessary.
authors: Department of Imaging, Shanxi Medical University, Taiyuan, China. wangxh301@hotmail.com
authors: Xing-Hua
authors: XH
authors: Wang
authors: Yu-Juan
authors: YJ
authors: Wang
authors: Cheng-Gong
authors: CG
authors: Lei
mesh_terms: D000328:Adult; D000368:Aged; D002292:Carcinoma, Renal Cell / Q000000981:diagnostic imaging; D002295:Carcinoma, Transitional Cell / Q000000981:diagnostic imaging; D003287:Contrast Media; D005260:Female; D006801:Humans; D007674:Kidney Diseases / Q000000981:diagnostic imaging*; D007680:Kidney Neoplasms / Q000000981:diagnostic imaging*; D008297:Male; D008875:Middle Aged; D010743:Phospholipids; D013459:Sulfur Hexafluoride; D014463:Ultrasonography; D001749:Urinary Bladder Neoplasms / Q000000981:diagnostic imaging*; D055815:Young Adult
chemical_list: D003287:Contrast Media; D010743:Phospholipids; C420843:contrast agent BR1; D013459:Sulfur Hexafluoride