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The Impact of PET-CT on Precise Radiotherapy Planning for Advanced Non- Small Cell Lung Cancer. (English)
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- Author(s): ZHANG Fang; SHI Tao; LANG Zhibin; SUN Mingjuan; ZHOU Ming; ZHAO Yi
- Source:
Tianjin Medical Journal; Nov2014, Vol. 42 Issue 11, p1109-1111, 3p- Subject Terms:
- Source:
- Additional Information
- Abstract: Objective To investigate the impact of PET-CT on the target volume delineation and precise radiotherapy planning for patients with advanced non-small cell lung cancer (NSCLC). Methods PET-CT scanning was performed in 30 histologically proved NSCLC patients. The gross tumor volume (GTV) was delineated, and radiotherapy planning was established with identical parameters based on the CT image and PET-CT fused image, respectively. The differences of doses between GTV, planning target volume (PTV) and organsat rise (OAR) were compared. Results PET- CT image results changed the target volume delineation in 30 patients with 8 increased and 22 decreased. There were no differences in GTV and PTV between the VGTVand Vptv statistically, although PET-CT image changed conventional CT image size sketch of GTV and PTV. The V
20 of total lung decreased in the Plan PET-CT compared with that of PlanCT (P < 0.05), but no differences were found in the V30 of total lung, mean lung dose (MLD), the data of spinal cord, esophagus and heart. Conclusion PET-CT may reduce the radiation injuries in the lung and improve the target dose. [ABSTRACT FROM AUTHOR] - Abstract: Copyright of Tianjin Medical Journal is the property of Tianjin Medical Journal and its content may not be copied or emailed to multiple sites or posted to a listserv without the copyright holder's express written permission. However, users may print, download, or email articles for individual use. This abstract may be abridged. No warranty is given about the accuracy of the copy. Users should refer to the original published version of the material for the full abstract. (Copyright applies to all Abstracts.)
- Abstract:
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