Abstract
OBJECTIVE: The aim of this study was to evaluate radiofrequency ablation (RFA) of lung tumors with dual-energy computed tomography while focusing on tumor composition and lung perfusion. METHODS: The 36 tumors in 25 patients were included. Dual-energy computed tomography was performed before RFA and at 2 days and 1, 3, and 6 months thereafter. The effective atomic number (Zeff) of the tumors before RFA was compared with the Zeff at each follow-up using the paired t test. Lung perfusion was evaluated by iodine map images. When decreased perfusion was suspected after RFA, lung perfusion scintigraphy was performed. RESULTS: The mean Zeff of the tumors significantly (P <0.001) decreased at each follow-up, compared with that before RFA. Lung perfusion in the parenchyma peripheral to the tumors appeared to decrease at 2 days in 9 tumors, which was confirmed by scintigraphy in 7 tumors. CONCLUSIONS: Dual-energy computed tomography was useful by providing additional information on tumor composition and lung perfusion.
| Original language | English |
|---|---|
| Journal | Journal of Computer Assisted Tomography |
| DOIs | |
| Publication status | Accepted/In press - May 25 2016 |
Fingerprint
ASJC Scopus subject areas
- Radiology Nuclear Medicine and imaging
Cite this
Evaluation of Lung Radiofrequency Ablation With Dual-Energy Computed Tomography : Analysis of Tumor Composition and Lung Perfusion. / Tomita, Koji; Hiraki, Takao; Gobara, Hideo; Fujiwara, Hiroyasu; Iguchi, Toshihiro; Matsui, Yusuke; Kanazawa, Susumu.
In: Journal of Computer Assisted Tomography, 25.05.2016.Research output: Contribution to journal › Article
}
TY - JOUR
T1 - Evaluation of Lung Radiofrequency Ablation With Dual-Energy Computed Tomography
T2 - Analysis of Tumor Composition and Lung Perfusion
AU - Tomita, Koji
AU - Hiraki, Takao
AU - Gobara, Hideo
AU - Fujiwara, Hiroyasu
AU - Iguchi, Toshihiro
AU - Matsui, Yusuke
AU - Kanazawa, Susumu
PY - 2016/5/25
Y1 - 2016/5/25
N2 - OBJECTIVE: The aim of this study was to evaluate radiofrequency ablation (RFA) of lung tumors with dual-energy computed tomography while focusing on tumor composition and lung perfusion. METHODS: The 36 tumors in 25 patients were included. Dual-energy computed tomography was performed before RFA and at 2 days and 1, 3, and 6 months thereafter. The effective atomic number (Zeff) of the tumors before RFA was compared with the Zeff at each follow-up using the paired t test. Lung perfusion was evaluated by iodine map images. When decreased perfusion was suspected after RFA, lung perfusion scintigraphy was performed. RESULTS: The mean Zeff of the tumors significantly (P <0.001) decreased at each follow-up, compared with that before RFA. Lung perfusion in the parenchyma peripheral to the tumors appeared to decrease at 2 days in 9 tumors, which was confirmed by scintigraphy in 7 tumors. CONCLUSIONS: Dual-energy computed tomography was useful by providing additional information on tumor composition and lung perfusion.
AB - OBJECTIVE: The aim of this study was to evaluate radiofrequency ablation (RFA) of lung tumors with dual-energy computed tomography while focusing on tumor composition and lung perfusion. METHODS: The 36 tumors in 25 patients were included. Dual-energy computed tomography was performed before RFA and at 2 days and 1, 3, and 6 months thereafter. The effective atomic number (Zeff) of the tumors before RFA was compared with the Zeff at each follow-up using the paired t test. Lung perfusion was evaluated by iodine map images. When decreased perfusion was suspected after RFA, lung perfusion scintigraphy was performed. RESULTS: The mean Zeff of the tumors significantly (P <0.001) decreased at each follow-up, compared with that before RFA. Lung perfusion in the parenchyma peripheral to the tumors appeared to decrease at 2 days in 9 tumors, which was confirmed by scintigraphy in 7 tumors. CONCLUSIONS: Dual-energy computed tomography was useful by providing additional information on tumor composition and lung perfusion.
UR - http://www.scopus.com/inward/record.url?scp=84969960222&partnerID=8YFLogxK
UR - http://www.scopus.com/inward/citedby.url?scp=84969960222&partnerID=8YFLogxK
U2 - 10.1097/RCT.0000000000000422
DO - 10.1097/RCT.0000000000000422
M3 - Article
C2 - 27224234
AN - SCOPUS:84969960222
JO - Journal of Computer Assisted Tomography
JF - Journal of Computer Assisted Tomography
SN - 0363-8715
ER -