Renal lesion characterization with gadolinium-enhanced MR imaging: efficacy and safety in patients with renal insufficiency
| Autor: | Richard B. Libes, Jeffrey C. Weinreb, Neil M. Rofsky, Morton A. Bosniak, Bernard A. Birnbaum |
|---|---|
| Rok vydání: | 1991 |
| Předmět: |
Gadolinium DTPA
medicine.medical_specialty Gadolinium medicine.medical_treatment chemistry.chemical_element Contrast Media Kidney Nephrotoxicity Lesion Renal cell carcinoma Carcinoma Organometallic Compounds Medicine Humans Radiology Nuclear Medicine and imaging Carcinoma Renal Cell Aged medicine.diagnostic_test business.industry Magnetic resonance imaging Kidney Diseases Cystic Pentetic Acid medicine.disease Magnetic Resonance Imaging Nephrectomy Kidney Neoplasms medicine.anatomical_structure chemistry Kidney Failure Chronic Radiology medicine.symptom business |
| Zdroj: | Radiology. 180(1) |
| ISSN: | 0033-8419 |
| Popis: | Five patients with renal insufficiency were studied with T1-weighted magnetic resonance (MR) imaging before and after intravenous administration of gadopentetate dimeglumine (0.1 mmol/kg) to characterize renal lesions that were detected with nonenhanced computed tomography (CT) and were considered indeterminate. Four patients demonstrated renal lesions that enhanced after gadolinium administration. A total of five lesions in these four patients were surgically resected and found to be renal cell carcinoma at pathologic examination. The fifth patient was spared surgery because a hyperattenuated lesion noted at nonenhanced CT did not enhance with intravenous gadolinium, indicating a benign cyst. Five incidentally occurring benign cysts removed at the time of nephrectomy in two of the patients did not demonstrate enhancement with gadolinium on MR images. Serial serum creatine levels were obtained before and after gadolinium administration in all patients; no changes were noted after gadolinium administration. Gadolinium-enhanced MR imaging is an effective method for characterizing renal lesions in patients with renal insufficiency. At the usual dosage, there appears to be no nephrotoxic reaction in these patients. |
| Databáze: | OpenAIRE |
| Externí odkaz: |
|