PMID- 30455092
OWN - NLM
STAT- MEDLINE
DCOM- 20200210
LR  - 20200210
IS  - 1873-4022 (Electronic)
IS  - 1873-4022 (Linking)
VI  - 44
IP  - 3
DP  - 2019 Autumn
TI  - Dependence of volume dose indices on dose calculation algorithms for VMAT-SBRT 
      plans for peripheral lung tumor.
PG  - 284-290
LID - S0958-3947(18)30127-4 [pii]
LID - 10.1016/j.meddos.2018.10.004 [doi]
AB  - The purpose of this study was to investigate the dependence of volume dose 
      indices on dose calculation algorithms for volumetric modulated arc therapy 
      (VMAT) for stereotactic body radiotherapy (SBRT) plans to treat peripheral lung 
      tumors by comparing them with those of Monte Carlo (MC) calculations. VMAT-SBRT 
      plans for peripheral lung tumors were created using the Eclipse treatment 
      planning system (TPS) for 24 patients with nonsmall cell lung cancer. VMAT dose 
      distributions for gross tumor volume (GTV), internal target volume (ITV), and 
      planning target volume (PTV) were calculated using the analytical anisotropic 
      algorithm (AAA), the Acuros XB (AXB) algorithm, and a MC algorithm. VMAT dose 
      distributions of the 3 algorithms were compared using their volume dose indices 
      from dose volume histograms (DVHs), a dose difference map, and 3-dimensional 
      gamma analysis. The DVHs for GTV and ITV from AAA, AXB, and MC were in good 
      agreement. The difference between the ITV and PTV volume dose indices from AAA 
      and MC increased as D(98), D(95), D(80), D(50), and D(2). In particular, the 
      difference between D(98) for PTV from AAA and MC was up to 48%. A >5% difference 
      between D(95) for PTV from AAA and MC was 11 patients, but only 2 patients for 
      ITV. The volume dose indices for AXB were near those of MC. AAA tended to 
      overestimate the PTV volume dose indices compared to AXB and MC. Thus, we propose 
      that the volume dose indices for the ITV be used because they are independent of 
      dose calculation algorithms.
CI  - Copyright (c) 2018 American Association of Medical Dosimetrists. All rights 
      reserved.
FAU - Matsuoka, Takanori
AU  - Matsuoka T
AD  - Graduate School of Health Sciences, Kumamoto University, Kumamoto, Japan.
FAU - Araki, Fujio
AU  - Araki F
AD  - Department of Health Sciences, Faculty of Life Sciences, Kumamoto University, 
      Kumamoto, Japan. Electronic address: f_araki@kumamoto-u.ac.jp.
FAU - Ohno, Takeshi
AU  - Ohno T
AD  - Department of Health Sciences, Faculty of Life Sciences, Kumamoto University, 
      Kumamoto, Japan.
FAU - Sakata, Junichi
AU  - Sakata J
AD  - Kumamoto Radiosurgery Clinic, Kumamoto, Japan.
FAU - Tominaga, Hirofumi
AU  - Tominaga H
AD  - Varian Medical Systems, Tokyo 103-0026, Japan.
LA  - eng
PT  - Journal Article
DEP - 20181116
PL  - United States
TA  - Med Dosim
JT  - Medical dosimetry : official journal of the American Association of Medical 
      Dosimetrists
JID - 8908862
SB  - IM
MH  - Algorithms
MH  - Humans
MH  - Imaging, Three-Dimensional
MH  - Lung Neoplasms/*radiotherapy
MH  - Monte Carlo Method
MH  - Radiosurgery/*methods
MH  - *Radiotherapy Dosage
MH  - Radiotherapy Planning, Computer-Assisted
MH  - Radiotherapy, Intensity-Modulated/*methods
OTO - NOTNLM
OT  - Dose calculation algorithm
OT  - Monte Carlo (MC)
OT  - Peripheral lung tumor
OT  - Stereotactic body radiotherapy
OT  - Volume prescription
EDAT- 2018/11/21 06:00
MHDA- 2020/02/11 06:00
CRDT- 2018/11/21 06:00
PHST- 2018/06/09 00:00 [received]
PHST- 2018/10/20 00:00 [revised]
PHST- 2018/10/23 00:00 [accepted]
PHST- 2018/11/21 06:00 [pubmed]
PHST- 2020/02/11 06:00 [medline]
PHST- 2018/11/21 06:00 [entrez]
AID - S0958-3947(18)30127-4 [pii]
AID - 10.1016/j.meddos.2018.10.004 [doi]
PST - ppublish
SO  - Med Dosim. 2019 Autumn;44(3):284-290. doi: 10.1016/j.meddos.2018.10.004. Epub 
      2018 Nov 16.