Journal
INVESTIGATIVE RADIOLOGY
Volume 42, Issue 6, Pages 420-427Publisher
LIPPINCOTT WILLIAMS & WILKINS
DOI: 10.1097/01.rli.0000262759.46364.50
Keywords
prostate; neoplasms; prostate; magnetic resonance (MR); spectroscopy; lymphatic system; neoplasms; choline
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In a patient suspected of having recurrent prostate cancer after radiation therapy, we demonstrate the feasibility of noninvasive proton magnetic resonance spectroscopic (H-1-MRS) imaging of the prostate and a lymph node at 3 T using a matrix of external surface coils. Written informed consent was obtained from the patient. With H-1-MRS imaging, high choline with low citrate signal was observed in the prostate, and in the lymph node a signal of choline-containing compounds was identified. The tissue level of the compounds in the enlarged lymph node was estimated to be 8.1 mmol/kg water. Subsequent histopathological analysis of systematic transrectal ultrasound-guided prostate biopsy and computed tomography-guided biopsy of the lymph node confirmed the presence of prostate cancer in both.
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