Ontology highlight
ABSTRACT: Unlabelled
This prospective pilot study evaluated the ability of Na(18)F PET/CT to detect and monitor bone metastases over time and its correlation with clinical outcomes and survival in advanced prostate cancer.Methods
Sixty prostate cancer patients, including 30 with and 30 without known bone metastases by conventional imaging, underwent Na(18)F PET/CT at baseline, 6 mo, and 12 mo. Positive lesions were verified on follow-up scans. Changes in SUVs and lesion number were correlated with prostate-specific antigen change, clinical impression, and overall survival.Results
Significant associations included the following: SUV and prostate-specific antigen percentage change at 6 mo (P = 0.014) and 12 mo (P = 0.0005); SUV maximal percentage change from baseline and clinical impression at 6 mo (P = 0.0147) and 6-12 mo (P = 0.0053); SUV change at 6 mo and overall survival (P = 0.018); number of lesions on Na(18)F PET/CT and clinical impression at baseline (P < 0.0001), 6 mo (P = 0.0078), and 12 mo (P = 0.0029); and number of lesions on Na(18)F PET/CT per patient at baseline and overall survival (P = 0.017). In an exploratory analysis, paired (99m)Tc-methylene diphosphonate bone scans ((99m)Tc-BS) were available for 35 patients at baseline, 19 at 6 mo, and 14 at 12 mo (68 scans). Malignant lesions on Na(18)F PET/CT (n = 57) were classified on (99m)Tc-BS as malignant 65% of the time, indeterminate 25% of the time, and negative 10% of the time. Additionally, 69% of paired scans showed more lesions on Na(18)F PET/CT than on (99m)Tc-BS.Conclusion
The baseline number of malignant lesions and changes in SUV on follow-up Na(18)F PET/CT significantly correlate with clinical impression and overall survival. Na(18)F PET/CT detects more bone metastases earlier than (99m)Tc-BS and enhances detection of new bone disease in high-risk patients.
SUBMITTER: Apolo AB
PROVIDER: S-EPMC6599519 | biostudies-literature | 2016 Jun
REPOSITORIES: biostudies-literature
Apolo Andrea B AB Lindenberg Liza L Shih Joanna H JH Mena Esther E Kim Joseph W JW Park Jong C JC Alikhani Anna A Alikhani Anna A McKinney Yolanda Y YY Weaver Juanita J Turkbey Baris B Parnes Howard L HL Wood Lauren V LV Madan Ravi A RA Gulley James L JL Dahut William L WL Kurdziel Karen A KA Choyke Peter L PL
Journal of nuclear medicine : official publication, Society of Nuclear Medicine 20160121 6
<h4>Unlabelled</h4>This prospective pilot study evaluated the ability of Na(18)F PET/CT to detect and monitor bone metastases over time and its correlation with clinical outcomes and survival in advanced prostate cancer.<h4>Methods</h4>Sixty prostate cancer patients, including 30 with and 30 without known bone metastases by conventional imaging, underwent Na(18)F PET/CT at baseline, 6 mo, and 12 mo. Positive lesions were verified on follow-up scans. Changes in SUVs and lesion number were correla ...[more]