Scintigraphic changes in bone metastasis from prostate cancer after hormonal therapy--comparison with tumor markers and bone X-ray.
Bone scintigraphy is often performed to assess the response to systemic therapy of bone metastasis from prostate cancer. We examined the changes in bone scintigraphic findings and the agreement with AIP, AcP, or other tumor markers measured in the follow-up of patients with known bone metastasis after hormonal therapy. Out of 32 patients, 22 (69%) showed improved scintigraphic findings on the first follow-up bone scintigraphy after hormonal therapy. However, 7 out of 22 patients who showed improvement on the first follow-up scintigraphy, deteriorated thereafter. Changes in the scintigraphic findings were closely correlated with those in the measured tumor markers except for patients with small bone metastasis. Though there were no significant differences in the agreement ratios of the 6 tumor markers evaluated, AIP might be a practical and acceptable indicator. Bone X-ray findings did not change at all in almost half of the cases though the scintigraphic findings showed improvement or deterioration.
Koizumi
K
K
Department of Radiology, Yamanashi Medical University, Japan.
Uchiyama
G
G
Komatsu
H
H
D000135:Acid Phosphatase / Q000097:blood; D000368:Aged; D000469:Alkaline Phosphatase / Q000097:blood; D014408:Biomarkers, Tumor / Q000097:blood*; D001859:Bone Neoplasms / Q000000981:diagnostic imaging / Q000556:secondary* / Q000628:therapy*; D001842:Bone and Bones / Q000000981:diagnostic imaging; D004967:Estrogens / Q000627:therapeutic use; D005500:Follow-Up Studies; D006801:Humans; D008297:Male; D009919:Orchiectomy; D017430:Prostate-Specific Antigen / Q000097:blood; D011471:Prostatic Neoplasms / Q000000981:diagnostic imaging / Q000628:therapy*; D029584:Prostatic Secretory Proteins; D011506:Proteins / Q000032:analysis; D011859:Radiography; D011863:Radioimmunoassay; D011877:Radionuclide Imaging; D029589:Seminal Plasma Proteins; D013997:Time Factors
D014408:Biomarkers, Tumor; D004967:Estrogens; D029584:Prostatic Secretory Proteins; D011506:Proteins; D029589:Seminal Plasma Proteins; C043076:beta-microseminoprotein; D000469:Alkaline Phosphatase; D000135:Acid Phosphatase; D017430:Prostate-Specific Antigen