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char = 1;code = 49
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char = P;code = 80
char = E;code = 69
char = T;code = 84
char = .;code = 46
result sql = Preoperative staging of pelvic lymph nodes in prostate cancer by 11C-choline PET.
Preoperative staging of pelvic lymph nodes in prostate cancer by 11C-choline PET.
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char = L;code = 76
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char = 1;code = 49
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char = M;code = 77
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result sql = UNLABELLED : Prostate cancer is known for its difficulties in preoperative staging of pelvic lymph nodes by conventional imaging techniques. Thus, a histopathologic examination of the pelvic lymphadenectomy specimen is mandatory for patients at risk for metastatic disease. The aim of this study was to evaluate the strength and accuracy of (11)C-choline PET in preoperative noninvasive staging of pelvic lymph nodes in prostate cancer.

METHODS : In a prospective study we examined 67 consecutive patients with histologically proven prostate cancer with (11)C-choline PET. The results of PET were compared with the results of histology of the pelvic lymph nodes and with the follow-up data. Conventional axial imaging was routinely performed using MRI or CT. The sensitivity, specificity, and accuracy of (11)C-choline PET were calculated.

RESULTS : Fifteen patients had histologically proven lymph node metastases. (11)C-Choline PET was true-positive in 12 of 15 patients and false-negative in 3 patients. Fifty-two patients had no lymph node metastases. (11)C-Choline PET was true-negative in 50 of 52 patients and false-positive in 2 patients. We calculated a sensitivity of (11)C-choline PET for staging metastatic lymph node disease of 80%, a specificity of 96%, and an accuracy of 93%. Next, (11)C-choline PET detected solitary extraregional lymph node metastases in 5 of 12 patients with nodal metastases.

CONCLUSION : This study showed that (11)C-choline PET is sensitive and accurate in preoperative staging of pelvic lymph nodes in prostate cancer.

Publication: J. Nucl. Med. 2003 Mar ;44(3)::331-5.
Publication Date: 2003 Mar
Study Author(s): de Jong, Igle J;Pruim, Jan;Elsinga, Philip H;Vaalburg, Willem;Mensink, Han J;
Institution: Department of Urology and PET Center, Groningen University Hospital, Groningen, The Netherlands. [email protected]
Shortcut link to this study:
UNLABELLED : Prostate cancer is known for its difficulties in preoperative staging of pelvic lymph nodes by conventional imaging techniques. Thus, a histopathologic examination of the pelvic lymphadenectomy specimen is mandatory for patients at risk for metastatic disease. The aim of this study was to evaluate the strength and accuracy of (11)C-choline PET in preoperative noninvasive staging of pelvic lymph nodes in prostate cancer.

METHODS : In a prospective study we examined 67 consecutive patients with histologically proven prostate cancer with (11)C-choline PET. The results of PET were compared with the results of histology of the pelvic lymph nodes and with the follow-up data. Conventional axial imaging was routinely performed using MRI or CT. The sensitivity, specificity, and accuracy of (11)C-choline PET were calculated.

RESULTS : Fifteen patients had histologically proven lymph node metastases. (11)C-Choline PET was true-positive in 12 of 15 patients and false-negative in 3 patients. Fifty-two patients had no lymph node metastases. (11)C-Choline PET was true-negative in 50 of 52 patients and false-positive in 2 patients. We calculated a sensitivity of (11)C-choline PET for staging metastatic lymph node disease of 80%, a specificity of 96%, and an accuracy of 93%. Next, (11)C-choline PET detected solitary extraregional lymph node metastases in 5 of 12 patients with nodal metastases.

CONCLUSION : This study showed that (11)C-choline PET is sensitive and accurate in preoperative staging of pelvic lymph nodes in prostate cancer.
PMID: 12620996

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