CT-guided bone biopsy using electron density maps from dual-energy CT
| Autor: | Shunsuke Kamei, Terumitsu Hasebe, Shinichiro Hiraiwa, Kosuke Tomita, Chikara Fujita, Kazuyuki Endo, Shota Yamamoto |
|---|---|
| Jazyk: | angličtina |
| Rok vydání: | 2021 |
| Předmět: |
Bone biopsy
business.industry R895-920 Bone metastasis Dual-Energy Computed Tomography medicine.disease Medical physics. Medical radiology. Nuclear medicine Breast cancer Bone lesion Computed tomography-guided intervention Dual energy computed tomography Interventional Radiology medicine Radiology Nuclear Medicine and imaging Dual energy ct Nuclear medicine business Material decomposition Biopsy procedure Electron density |
| Zdroj: | Radiology Case Reports Radiology Case Reports, Vol 16, Iss 9, Pp 2343-2346 (2021) |
| ISSN: | 1930-0433 |
| Popis: | Computed tomography (CT) -guided bone biopsy is a diagnostic procedure performed on the musculoskeletal system with a high diagnostic yield and low complications. However, CT-guided bone biopsy has the disadvantage that it is difficult to confirm the presence of tumor cells during the biopsy procedure. Recently, the clinical benefits of dual-energy CT (DECT) over single-energy CT have been revealed. DECT can provide material decomposition images including calcium suppression images, and effective atomic number (Zeff) and electron density (ED) maps. ED maps have been reported to indicate cellularity. A 61-year-old woman with a history of breast cancer surgery was admitted to our hospital and underwent a CT-guided bone biopsy of the right ilium using ED maps. As a result, she was diagnosed with breast cancer metastases of intertrabecular bone. A comparison of ED maps with a pathological specimen revealed that high ED values occurred exclusively in the tumor area with high cellularity. This study indicates that ED maps produced using DECT may have potential utility in the accurate identification of metastases with high cellularity in bone lesions. |
| Databáze: | OpenAIRE |
| Externí odkaz: |
|