alexa Impact of the Vero4DRT (MHI-TM2000) on the Total Treatment Time in Stereotactic Irradiation | OMICS International | Abstract
ISSN: 2155-9619

Journal of Nuclear Medicine & Radiation Therapy
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Research Article

Impact of the Vero4DRT (MHI-TM2000) on the Total Treatment Time in Stereotactic Irradiation

Hajime Monzen1,2, Takashi Mizowaki1*, Shinsuke Yano3, Takahiro Fujimoto3, Takeshi Kamomae4, Satoru Utsunomiya5, Mitsuhiro Nakamura1 and Masahiro Hiraoka1

1Department of Radiation Oncology and Image-applied Therapy, Graduate School of Medicine, Kyoto University, Kyoto 606-8507, Japan

2Department of Radiation Oncology, Graduate school of medicine, Kinki University, Osaka 589-8511, Japan

3Division of Clinical Radiology Service, Kyoto University Hospital, Kyoto 606-8507, Japan

4Department of Therapeutic Radiology, Nagoya University Graduate School of Medicine, Nagoya, 466-8550, Japan

5Department of Radiology, Niigata University Graduate School of Medical and Dental Sciences, Japan

Corresponding Author:
Takashi Mizowaki, MD, PhD
Department of Radiation Oncology and Image-Applied Therapy
Kyoto University Graduate School of Medicine
54 Kawara-cho, Shogoin, Sakyo-ku, Kyoto 606-8507, Japan
Tel: +81-75-751-3762
Fax: +81-75-771-9749
E-mail: [email protected]

Received Date: June 29, 2015 Accepted Date: July 29, 2015 Published Date: July 31, 2015

Citation: Monzen H, Mizowaki T, Yano S, Fujimoto T, Kamomae T, et al. (2015) Impact of the Vero4DRT (MHI-TM2000) on the Total Treatment Time in Stereotactic Irradiation. J Nucl Med Radiat Ther 6:238. doi:10.4172/2155-9619.1000238

Copyright: © 2015 Monzen H, et al. This is an open-access article distributed under the terms of the Creative Commons Attribution License; which permits unrestricted use; distribution; and reproduction in any medium; provided the original author and source are credited.


Background:This study compared features of the Vero4DRT system with those of conventional systems, focusing on the total treatment time and patient safety.

Methods: Individual treatment times for brain stereotactic radiotherapy (SRT) and stereotactic body radiation therapy (SBRT) were compared among the Vero4DRT, Novalis, and Clinac iX systems. The mean total treatment time was calculated by summing the entire time required for the radiation treatment. The total treatment time for both brain SRT and SBRT with non-coplanar fields was markedly shorter with the Vero4DRT system than the others.

Results: For SBRT, the treatment time with the Vero4DRT system was reduced by 40%, compared with the time using a Clinac iX (13.8 vs. 20.3 min). For SRT, the treatment time with Vero4DRT was 20% shorter than with the Novalis system. With Vero4DRT, all treatments were completed within 14 min, with a significant reduction in the kV-image acquisition and image merging times.

Conclusion: The total treatment time using the Vero4DRT system was significantly shorter compared with conventional options in clinical settings; the shorter treatment time also offered the advantages of minimal intrafractional body movement, as well as better patient throughput.


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