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Utility of apparent diffusion coefficients in the evaluation of solid renal tumors at 3T.
- Source :
-
Magnetic resonance in medical sciences : MRMS : an official journal of Japan Society of Magnetic Resonance in Medicine [Magn Reson Med Sci] 2014; Vol. 13 (2), pp. 89-95. Date of Electronic Publication: 2014 Apr 28. - Publication Year :
- 2014
-
Abstract
- Purpose: We assessed the usefulness of apparent diffusion coefficients (ADCs) for solid renal tumor imaging using diffusion-weighted magnetic resonance imaging (DWI) at 3T.<br />Methods: This retrospective study assessed ADCs of 31 patients with renal tumors that were imaged using preoperative DWI. DWI was performed with the b values of 50, 500, and 1000 s/mm(2), using a 3T magnetic resonance imaging (MRI) system (MAGNETOM Trio, 3T, Siemens Healthcare, Erlangen, Germany). The ADC map was calculated using the b values of 50 and 1000 s/mm(2). ADCs of the different tumors were compared according to the Tukey-Kramer test.<br />Results: The tumors were diagnosed as clear cell renal cell carcinoma (RCC; n = 20), papillary RCC (n = 1), infiltrating urothelial carcinoma (UC) of the kidney (n = 4), cystic RCC (n = 1), poorly differentiated carcinoma (n = 1), and angiomyolipoma (AML; n = 4). The mean ADC of clear cell RCC was significantly higher than that of infiltrating UC of the kidney (1.423 vs. 0.931 × 10(-3) mm(2)/s; P < 0.05), and the mean ADC of AML was significantly lower than that of clear cell RCC (0.674 vs. 1.423 × 10(-3) mm(2)/s; P < 0.01).<br />Conclusion: ADCs used in DWI at 3T may be useful for differentiation of different types of solid renal tumors.
- Subjects :
- Adult
Aged
Angiomyolipoma pathology
Biopsy
Carcinoma, Renal Cell pathology
Contrast Media
Female
Gadolinium
Gadolinium DTPA
Heterocyclic Compounds
Humans
Male
Middle Aged
Organometallic Compounds
Reproducibility of Results
Retrospective Studies
Diffusion Magnetic Resonance Imaging methods
Kidney Neoplasms pathology
Subjects
Details
- Language :
- English
- ISSN :
- 1880-2206
- Volume :
- 13
- Issue :
- 2
- Database :
- MEDLINE
- Journal :
- Magnetic resonance in medical sciences : MRMS : an official journal of Japan Society of Magnetic Resonance in Medicine
- Publication Type :
- Academic Journal
- Accession number :
- 24769634
- Full Text :
- https://doi.org/10.2463/mrms.2013-0038