Tomonori Nakamura1, Takeshi Yoshizako2, Hisayoshi Araki1, Mitsunari Maruyama1, Koji Uchida1, Yukihisa Tamaki1, Noriyuki Ishikawa3, Hiroaki Shiina4, Hajime Kitagaki1. 1. Department of Radiology, Shimane University Faculty of Medicine, P.O. Box 00693-8501, 89-1 Enya, Izumo, Japan. 2. Department of Radiology, Shimane University Faculty of Medicine, P.O. Box 00693-8501, 89-1 Enya, Izumo, Japan. Electronic address: yosizako@med.shimane-u.ac.jp. 3. Department of Organ Pathology, Shimane University Faculty of Medicine, P.O. Box 00693-8501, 89-1 Enya, Izumo, Japan. 4. Department of Urology, Shimane University Faculty of Medicine, P.O. Box 00693-8501, 89-1 Enya, Izumo, Japan.
Abstract
PURPOSE: The utility of the apparent diffusion coefficient (ADC) in patients with clear-cell renal cell carcinoma (RCC) for distinguishing between the four clinical stages was assessed. METHODS: Forty-nine patients with pathologically proven RCCs (I, II, III, IV; 27, 5, 10, 7) were included. The ADC was compared between each stage. RESULTS: The difference of ADC between stage I and the more advanced stages (III and IV) was statistically significant. CONCLUSIONS: When ADC in primary tumor site of clear-cell RCC would be higher than the cutoff level, the stage might not be an advanced stage (III or IV).
PURPOSE: The utility of the apparent diffusion coefficient (ADC) in patients with clear-cell renal cell carcinoma (RCC) for distinguishing between the four clinical stages was assessed. METHODS: Forty-nine patients with pathologically proven RCCs (I, II, III, IV; 27, 5, 10, 7) were included. The ADC was compared between each stage. RESULTS: The difference of ADC between stage I and the more advanced stages (III and IV) was statistically significant. CONCLUSIONS: When ADC in primary tumor site of clear-cell RCC would be higher than the cutoff level, the stage might not be an advanced stage (III or IV).