Dosimetric comparison of 3-dimensional conformal radiotherapy, volumetric modulated arc therapy, and helical tomotherapy for postoperative gastric cancer patients.
Purpose: To compare dosimetric data for the planning target volume (PTV) and organs at risk (OARs) between 3-dimensional conformal radiotherapy (3DCRT), volumetric modulated arc therapy (VMAT), and helical tomotherapy [1].Materials and Methods: The dosimetric data for 15 gastric cancer patients trea...
| Publicado en: | Japanese Journal of Radiology Vol. 36; no. 1; pp. 30 - 40 |
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| Autores principales: | , , |
| Formato: | research Journal Article |
| Publicado: |
Springer Nature
Jan2018
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| Acceso en línea: | Ver este registro en EBSCOhost |
| fields | @attributes: recordID: 1 pdfLink: plink: https://search.ebscohost.com/login.aspx?direct=true&db=ccm&AN=127145372&site=ehost-live header: @attributes: shortDbName: ccm uiTerm: 127145372 longDbName: CINAHL Complete uiTag: AN controlInfo: bkinfo: dissinfo: jinfo: jid: 18671071 AUCM jtl: Japanese Journal of Radiology issn: 18671071 maglogo: N pubinfo: dt: Jan2018 vid: 36 iid: 1 pid: 237 pub: Springer Nature place: New York, New York artinfo: ui: 127145372 127145372 143961325 NLM29101643 127145372 10.1007/s11604-017-0696-x NLM29101643 127145372 ppf: 30 ppct: 10 formats: fmt: – @attributes: type: T – @attributes: type: P tig: atl: Dosimetric comparison of 3-dimensional conformal radiotherapy, volumetric modulated arc therapy, and helical tomotherapy for postoperative gastric cancer patients. aug: au: Onal, Cem Dölek, Yemliha Akkuş Yıldırım, Berna affil: Department of Radiation Oncology, Adana Dr Turgut Noyan Research and Treatment Centre, Baskent University Faculty of Medicine, 01120, Adana, Turkey sug: subj: Radiotherapy, Computer-Assisted Methods Radiotherapy, Conformal Methods Stomach Neoplasms Radiotherapy Postoperative Period Middle Age Aged Adult Male Human Body Regions Radiation Dosage Radiometry Female Validation Studies Comparative Studies Evaluation Research Multicenter Studies Middle Aged: 45-64 years Aged: 65+ years Adult: 19-44 years Male Female ab: Purpose: To compare dosimetric data for the planning target volume (PTV) and organs at risk (OARs) between 3-dimensional conformal radiotherapy (3DCRT), volumetric modulated arc therapy (VMAT), and helical tomotherapy [1].Materials and Methods: The dosimetric data for 15 gastric cancer patients treated with 3DCRT, VMAT, or HT techniques were used. Cumulative dosimetric parameters, homogeneity index (HI), and conformal index (CI) were compared for the PTV and OARs.Results: The average maximum doses of PTV were significantly higher in VMAT plans than in 3DCRT (p = 0.04) and HT (p = 0.02) plans, whereas minimum dose values were significantly lower in 3DCRT plans compared with VMAT (p < 0.001) and HT (p = 0.02) plans. Liver mean dose (D mean) and D mean values for both kidneys were significantly lower in HT plans than in 3DCRT and VMAT plans. The doses in high dose regions (V30-V45) using 3DCRT plans were significantly higher compared to both VMAT and HT plans. The bowel V5-V30 and V45 was significantly less in HT plans compared to VMAT plans. There were no significant differences in dose sparing of the spinal cord.Conclusions: The HT plans reduced the maximum dose applied to the target and improved the conformality and homogeneity of radiation, while providing sufficient PTV coverage. pubtype: Academic Journal doctype: research Journal Article ougenre: Article language: English refInfo: holdings: @attributes: islocal: N |
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