Abstract:
PURPOSE:Patients with persistent elevated PSA and repeated negative prostate biopsy, that means having the prostate biopsied at multiple times, were investigated with 18F-choline PET/CT to delineate prostate cancer and guide renewed prostate biopsy. METHODS:Twenty patients with elevated PSA and negative prostate biopsies underwent 18F-choline PET/CT. We performed an early examination of the pelvic region 3-5 min after application. After 30 minutes a whole body PET/CT examination was performed. Image analysis was performed visually and by semi-quantitative analysis calculating the maximum standardised uptake value (SUVmax). 18F-choline uptake was defined as focal, multifocal or inhomogeneous. After the 18F-choline PET/CT, all patients underwent a repeated prostate biopsy, and in the cases where a focal or multifocal uptake was found, the biopsy was guided by the result of the examination. RESULTS:Qualitative image analysis revealed focal 18F-choline uptake in 13 out of 20 patients. In five patients, prostate cancer was revealed by repeated aspiration biopsy. None of the patients with a multifocal or inhomogeneous 18F-choline uptake had a malignant neoplasm in the prostate. Semiquantitative analysis performed with SUVmax was not helpful in the discrimination of malignancy but showed high values also in benign prostate diseases, as well as in normal prostate tissue. The dual-phase protocol delivered no clear benefit in discriminating malignancy from benign alterations. CONCLUSION:The use of 18F-choline cannot be generally recommended for localising prostate cancer; however, in highly selected patients, we found useful additional information. In 25% of patients, 18F-choline PET/CT allowed the identification of neoplastic prostatic zones.
journal_name
Eur J Nucl Med Mol Imagingauthors
Igerc I,Kohlfürst S,Gallowitsch HJ,Matschnig S,Kresnik E,Gomez-Segovia I,Lind Pdoi
10.1007/s00259-007-0686-9subject
Has Abstractpub_date
2008-05-01 00:00:00pages
976-83issue
5eissn
1619-7070issn
1619-7089journal_volume
35pub_type
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journal_title:European journal of nuclear medicine and molecular imaging
pub_type: 杂志文章
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journal_title:European journal of nuclear medicine and molecular imaging
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pub_type: 杂志文章,实务指引
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更新日期:2020-08-01 00:00:00
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journal_title:European journal of nuclear medicine and molecular imaging
pub_type: 杂志文章,评审
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pub_type: 杂志文章
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更新日期:2008-06-01 00:00:00
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journal_title:European journal of nuclear medicine and molecular imaging
pub_type: 杂志文章,多中心研究
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更新日期:2015-12-01 00:00:00
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journal_title:European journal of nuclear medicine and molecular imaging
pub_type: 杂志文章
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更新日期:2008-12-01 00:00:00
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更新日期:2020-11-11 00:00:00
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更新日期:2020-09-09 00:00:00
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pub_type: 杂志文章
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更新日期:2011-02-01 00:00:00