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result sql = 11C-choline positron emission tomography in prostate cancer: primary staging and recurrent site staging.
11C-choline positron emission tomography in prostate cancer: primary staging and recurrent site staging.
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result sql = OBJECTIVES : To evaluate the usefulness of 11C-choline positron emission tomography (PET) for primary staging and re-staging of prostate cancer.

PATIENTS AND METHODS : 11C-choline PET, a total of 22 scans, was performed on 13 patients with histologically proven prostate cancer in primary staging (n = 6) and recurrent site staging; following radical prostatectomy (n = 5) and following radiation therapy (n = 3). In 1 patient, 11C-choline PET was performed in both primary staging and re-staging. Also, 3 patients histologically proven to have no malignant prostate were included.

RESULTS : Because urinary 11C-choline activity was low, it did not interfere with the visualization of pelvic structures. 11C-choline PET visualized normal prostate with a mean SUV of 2.99 (range 2.27-3.68) and primary prostate cancer as a hot spot in 5/6 scans with a mean SUV of 4.21 (range 2.99-6.2). In re-staging, 11C-choline PET was true positive in 9/16 scans and true negative in 2/16 scans. 5/16 scans in 2 patients were false negative with negative conventional imaging.

CONCLUSIONS : In primary staging, 11C-choline PET may not be of use because of no reliable differential 11C-choline uptake of BPH and prostate cancer. On the other hand, 11C-choline PET may be of value in recurrent site staging and monitoring for the prostate cancer.

Publication: Urol. Int. 2005 ;74(3)::214-20.
Publication Date: 2005
Study Author(s): Yoshida, Soichiro;Nakagomi, Kazuaki;Goto, Shuichi;Futatsubashi, Masami;Torizuka, Tatsuo;
Institution: Department of Urology, Hamamatsu Medical Center, Hamamatsu, Japan. [email protected]
Shortcut link to this study:
OBJECTIVES : To evaluate the usefulness of 11C-choline positron emission tomography (PET) for primary staging and re-staging of prostate cancer.

PATIENTS AND METHODS : 11C-choline PET, a total of 22 scans, was performed on 13 patients with histologically proven prostate cancer in primary staging (n = 6) and recurrent site staging; following radical prostatectomy (n = 5) and following radiation therapy (n = 3). In 1 patient, 11C-choline PET was performed in both primary staging and re-staging. Also, 3 patients histologically proven to have no malignant prostate were included.

RESULTS : Because urinary 11C-choline activity was low, it did not interfere with the visualization of pelvic structures. 11C-choline PET visualized normal prostate with a mean SUV of 2.99 (range 2.27-3.68) and primary prostate cancer as a hot spot in 5/6 scans with a mean SUV of 4.21 (range 2.99-6.2). In re-staging, 11C-choline PET was true positive in 9/16 scans and true negative in 2/16 scans. 5/16 scans in 2 patients were false negative with negative conventional imaging.

CONCLUSIONS : In primary staging, 11C-choline PET may not be of use because of no reliable differential 11C-choline uptake of BPH and prostate cancer. On the other hand, 11C-choline PET may be of value in recurrent site staging and monitoring for the prostate cancer.
PMID: 15812206

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