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KMID : 1148920110450040268
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Nuclear Medicine and Molecular Imaging
2011 Volume.45 No. 4 p.268 ~ p.275
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Whole-Body Bone Scan Findings after High-Intensity Focused Ultrasound (HIFU) Treatment
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Seo Ye-Young
O Joo-Hyun
Sohn Hyung-Sun
Choi Eun-Kyoung
Yoo Ik-Dong
Oh Jin-Kyoung
Han Eun-Ji
Jung Seung-Eun
Kim Sung-Hoon
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Abstract
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Purpose: This study aims to examine the findings of 99mTc-diphosphonate bone scans in cancer patients with a history of HIFU treatment.
Methods: Bone scan images of patients with a history of HIFU treatment for primary or metastatic cancer from January 2006 to July 2010 were retrospectively reviewed. Cases of primary bone tumor or HIFU treatment reaching only the superficial soft tissue layer were excluded.
Results: Bone scan images of 62 patients (26 female, 36 male; mean age 57?±?9 years) were studied. HIFU treatment was performed in the liver (n?=?40), pancreas (n?=?16), and breast (n?=?6). Mean interval time between HIFU treatment and bone scan was 106?±?105 days (range: 1?572 days). Of 62 scans, 43 showed diffusely decreased uptake of bone within the path of HIFU treatment: antero-axillary and/or posterior arcs of right 5th to 11th ribs in 34 cases after treatment of hepatic lesions; anterior arcs of 2nd to 5th ribs in 5 cases after treatment for breast tumors; and posterior arcs of left 9th to 11th ribs or thoraco-lumbar vertebrae in 4 cases after treatment for pancreas tumor. Of 20 patients who had bone scans more than twice, five showed recovered uptake of the radiotracer in the involved ribs in the follow-up bone scan.
Conclusion: Of 62 bone scans in patients with a history of HIFU treatment for primary or metastatic cancer, 69% presented diffusely decreased uptake in the bone in the path of HIFU treatment.
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KEYWORD
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High-intensity focused ultrasound, Whole-body bone scan, Photon defect
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