Mitsuhiro Nakamura

Summary

Affiliation: Kyoto University
Country: Japan

Publications

  1. doi request reprint Positional reproducibility of pancreatic tumors under end-exhalation breath-hold conditions using a visual feedback technique
    Mitsuhiro Nakamura
    Department of Radiation Oncology and Image Applied Therapy, Graduate School of Medicine, Kyoto University, Kyoto, Japan
    Int J Radiat Oncol Biol Phys 79:1565-71. 2011
  2. doi request reprint Influence of the correlation modeling period on the prediction accuracy of infrared marker-based dynamic tumor tracking using a gimbaled X-ray head
    Mitsuhiro Nakamura
    Department of Radiation Oncology and Image Applied Therapy, Graduate School of Medicine, Kyoto University, Japan Electronic address
    Phys Med 31:204-9. 2015
  3. doi request reprint Effect of audio instruction on tracking errors using a four-dimensional image-guided radiotherapy system
    Mitsuhiro Nakamura
    Kyoto University
    J Appl Clin Med Phys 14:255-64. 2013
  4. pmc Multi-institutional comparison of treatment planning using stereotactic ablative body radiotherapy for hepatocellular carcinoma - benchmark for a prospective multi-institutional study
    Takahisa Eriguchi
    Department of Radiation Oncology, Juntendo University, Tokyo, Japan
    Radiat Oncol 8:113. 2013
  5. doi request reprint Experimental validation of heterogeneity-corrected dose-volume prescription on respiratory-averaged CT images in stereotactic body radiotherapy for moving tumors
    Mitsuhiro Nakamura
    Department of Radiation Oncology and Image Applied Therapy, Graduate School of Medicine, Kyoto University, Kyoto, Japan
    Med Dosim 37:20-5. 2012
  6. doi request reprint Dosimetric investigation of breath-hold intensity-modulated radiotherapy for pancreatic cancer
    Mitsuhiro Nakamura
    Department of Radiation Oncology and Image Applied Therapy, Graduate School of Medicine, Kyoto University, Kyoto, Kyoto 606 8507, Japan
    Med Phys 39:48-54. 2012
  7. doi request reprint Effect of audio coaching on correlation of abdominal displacement with lung tumor motion
    Mitsuhiro Nakamura
    Department of Radiation Oncology and Image Applied Therapy, Kyoto University Graduate School of Medicine, Kyoto, Japan
    Int J Radiat Oncol Biol Phys 75:558-63. 2009
  8. ncbi request reprint Impact of motion velocity on four-dimensional target volumes: a phantom study
    Mitsuhiro Nakamura
    Department of Radiation Oncology and Image Applied Therapy, Graduate School of Medicine, Kyoto University, 54 Kawahara cho, Shogoin, Sakyo ku, Kyoto 606 8507, Japan
    Med Phys 36:1610-7. 2009
  9. doi request reprint Measurement of interfraction variations in position and size of target volumes in stereotactic body radiotherapy for lung cancer
    Kiyotomo Matsugi
    Department of Radiation Oncology and Image Applied Therapy, Kyoto University Graduate School of Medicine, Kyoto, Japan
    Int J Radiat Oncol Biol Phys 75:543-8. 2009
  10. doi request reprint Predictive uncertainty in infrared marker-based dynamic tumor tracking with Vero4DRT
    Mami Akimoto
    Department of Radiation Oncology and Image Applied Therapy, Graduate School of Medicine, Kyoto University, Kyoto 606 8507, Japan
    Med Phys 40:091705. 2013

Collaborators

Detail Information

Publications34

  1. doi request reprint Positional reproducibility of pancreatic tumors under end-exhalation breath-hold conditions using a visual feedback technique
    Mitsuhiro Nakamura
    Department of Radiation Oncology and Image Applied Therapy, Graduate School of Medicine, Kyoto University, Kyoto, Japan
    Int J Radiat Oncol Biol Phys 79:1565-71. 2011
    ..To assess positional reproducibility of pancreatic tumors under end-exhalation (EE) breath-hold (BH) conditions with a visual feedback technique based on computed tomography (CT) images...
  2. doi request reprint Influence of the correlation modeling period on the prediction accuracy of infrared marker-based dynamic tumor tracking using a gimbaled X-ray head
    Mitsuhiro Nakamura
    Department of Radiation Oncology and Image Applied Therapy, Graduate School of Medicine, Kyoto University, Japan Electronic address
    Phys Med 31:204-9. 2015
    ..To assess the utility of 10 s and 20 s modeling periods, rather than the 40 s currently used, in the clinical construction of practical correlation models (CMs) in dynamic tumor tracking irradiation using the Vero4DRT...
  3. doi request reprint Effect of audio instruction on tracking errors using a four-dimensional image-guided radiotherapy system
    Mitsuhiro Nakamura
    Kyoto University
    J Appl Clin Med Phys 14:255-64. 2013
    ..Although audio instruction improved breathing regularity, it also increased the respiratory velocity, which did not necessarily reduce tracking errors. ..
  4. pmc Multi-institutional comparison of treatment planning using stereotactic ablative body radiotherapy for hepatocellular carcinoma - benchmark for a prospective multi-institutional study
    Takahisa Eriguchi
    Department of Radiation Oncology, Juntendo University, Tokyo, Japan
    Radiat Oncol 8:113. 2013
    ..This study aims to assess and minimize inter-institutional variations in treatment planning using SABR for hepatocellular carcinoma (HCC) in preparation for a prospective multi-institutional study...
  5. doi request reprint Experimental validation of heterogeneity-corrected dose-volume prescription on respiratory-averaged CT images in stereotactic body radiotherapy for moving tumors
    Mitsuhiro Nakamura
    Department of Radiation Oncology and Image Applied Therapy, Graduate School of Medicine, Kyoto University, Kyoto, Japan
    Med Dosim 37:20-5. 2012
    ....
  6. doi request reprint Dosimetric investigation of breath-hold intensity-modulated radiotherapy for pancreatic cancer
    Mitsuhiro Nakamura
    Department of Radiation Oncology and Image Applied Therapy, Graduate School of Medicine, Kyoto University, Kyoto, Kyoto 606 8507, Japan
    Med Phys 39:48-54. 2012
    ....
  7. doi request reprint Effect of audio coaching on correlation of abdominal displacement with lung tumor motion
    Mitsuhiro Nakamura
    Department of Radiation Oncology and Image Applied Therapy, Kyoto University Graduate School of Medicine, Kyoto, Japan
    Int J Radiat Oncol Biol Phys 75:558-63. 2009
    ..To assess the effect of audio coaching on the time-dependent behavior of the correlation between abdominal motion and lung tumor motion and the corresponding lung tumor position mismatches...
  8. ncbi request reprint Impact of motion velocity on four-dimensional target volumes: a phantom study
    Mitsuhiro Nakamura
    Department of Radiation Oncology and Image Applied Therapy, Graduate School of Medicine, Kyoto University, 54 Kawahara cho, Shogoin, Sakyo ku, Kyoto 606 8507, Japan
    Med Phys 36:1610-7. 2009
    ....
  9. doi request reprint Measurement of interfraction variations in position and size of target volumes in stereotactic body radiotherapy for lung cancer
    Kiyotomo Matsugi
    Department of Radiation Oncology and Image Applied Therapy, Kyoto University Graduate School of Medicine, Kyoto, Japan
    Int J Radiat Oncol Biol Phys 75:543-8. 2009
    ..To investigate the interfraction variations in volume, motion range, and position of the gross tumor volume (GTV) in hypofractionated stereotactic body radiotherapy (SBRT) for lung cancer using four-dimensional computed tomography...
  10. doi request reprint Predictive uncertainty in infrared marker-based dynamic tumor tracking with Vero4DRT
    Mami Akimoto
    Department of Radiation Oncology and Image Applied Therapy, Graduate School of Medicine, Kyoto University, Kyoto 606 8507, Japan
    Med Phys 40:091705. 2013
    ..To quantify the predictive uncertainty in infrared (IR)-marker-based dynamic tumor tracking irradiation (IR Tracking) with Vero4DRT (MHI-TM2000) for lung cancer using logfiles...
  11. pmc Differences in the dose-volume metrics with heterogeneity correction status and its influence on local control in stereotactic body radiation therapy for lung cancer
    Nami Ueki
    Department of Radiation Oncology and Image Applied Therapy, Graduate School of Medicine, Kyoto University, 54 Shogoin Kawahara cho, Sakyo ku, Kyoto, 606 8507, Japan
    J Radiat Res 54:337-43. 2013
    ..9 months, LR occurred in 18 patients. Between the LC and LR groups, no significant differences were observed for any of the metrics. Even after stratification according to T-stage, no significant difference was observed between LC and LR...
  12. doi request reprint Differences in dose-volumetric data between the analytical anisotropic algorithm and the x-ray voxel Monte Carlo algorithm in stereotactic body radiation therapy for lung cancer
    Wambaka Ange Mampuya
    Department of Radiation Oncology and Image Applied Therapy, Graduate School of Medicine, Kyoto University, Kyoto, Japan
    Med Dosim 38:95-9. 2013
    ..02, respectively). Tumor location and volume might have an effect on the differences in dose-volumetric parameters. The differences between AAA and XVMC were considered to be within an acceptable range (<5 percentage points)...
  13. doi request reprint Interfractional dose variations in intensity-modulated radiotherapy with breath-hold for pancreatic cancer
    Mitsuhiro Nakamura
    Department of Radiation Oncology and Image Applied Therapy, Kyoto University Graduate School of Medicine, Kyoto, Japan
    Int J Radiat Oncol Biol Phys 82:1619-26. 2012
    ..To investigate the interfractional dose variations for intensity-modulated radiotherapy (RT) combined with breath-hold (BH) at end-exhalation (EE) for pancreatic cancer...
  14. doi request reprint Optimization of the x-ray monitoring angle for creating a correlation model between internal and external respiratory signals
    Mami Akimoto
    Department of Radiation Oncology and Image Applied Therapy, Graduate School of Medicine, Kyoto University, Japan
    Med Phys 39:6309-15. 2012
    ..In the present study, the authors proposed a method to readily determine the optimal x-ray monitoring angle for creating a 4D model utilizing computed tomography (CT) images...
  15. doi request reprint Analysis of dosimetric parameters associated with acute gastrointestinal toxicity and upper gastrointestinal bleeding in locally advanced pancreatic cancer patients treated with gemcitabine-based concurrent chemoradiotherapy
    Akira Nakamura
    Department of Radiation Oncology and Image Applied Therapy, Kyoto University Graduate School of Medicine, Kyoto, Japan
    Int J Radiat Oncol Biol Phys 84:369-75. 2012
    ..To identify the dosimetric parameters associated with gastrointestinal (GI) toxicity in patients with locally advanced pancreatic cancer (LAPC) treated with gemcitabine-based chemoradiotherapy...
  16. doi request reprint Interfractional reproducibility in pancreatic position based on four-dimensional computed tomography
    Takehiro Shiinoki
    Department of Nuclear Engineering, Graduate School of Engineering, Kyoto University, Kyoto, Japan
    Int J Radiat Oncol Biol Phys 80:1567-72. 2011
    ..To assess the interfractional positional variation of the pancreas using four-dimensional computed tomography (4D-CT) and to determine the suitable phase of respiration for dose delivery methods to account for pancreatic tumor motion...
  17. doi request reprint Interfractional dose variations in the stomach and the bowels during breathhold intensity-modulated radiotherapy for pancreatic cancer: Implications for a dose-escalation strategy
    Akira Nakamura
    Department of Radiation Oncology and Image Applied Therapy, Kyoto University, Kyoto, Japan
    Med Phys 40:021701. 2013
    ....
  18. ncbi request reprint Geometrical differences in target volumes between slow CT and 4D CT imaging in stereotactic body radiotherapy for lung tumors in the upper and middle lobe
    Mitsuhiro Nakamura
    Department of Radiation Oncology and Image Applied Therapy, Graduate School of Medicine, Kyoto University, Kyoto 606 8507, Japan
    Med Phys 35:4142-8. 2008
    ..0, 5.4, 4.9, 5.1, 1.8, and 1.7 mm for lateral, medial, ventral, dorsal, cranial, and caudal directions, respectively...
  19. doi request reprint Dose--volume metrics associated with radiation pneumonitis after stereotactic body radiation therapy for lung cancer
    Yukinori Matsuo
    Department of Radiation Oncology and Image Applied Therapy, Kyoto University, Kyoto, Japan
    Int J Radiat Oncol Biol Phys 83:e545-9. 2012
    ..To identify dose-volume factors associated with radiation pneumonitis (RP) after stereotactic body radiation therapy (SBRT) for lung cancer...
  20. doi request reprint Interfraction variation in lung tumor position with abdominal compression during stereotactic body radiotherapy
    Wambaka Ange Mampuya
    Department of Radiation Oncology and Image Applied Therapy, Graduate School of Medicine, Kyoto University, Kyoto 606 8507, Japan
    Med Phys 40:091718. 2013
    ....
  21. pmc Dosimetric evaluation of the impacts of different heterogeneity correction algorithms on target doses in stereotactic body radiation therapy for lung tumors
    Masaru Narabayashi
    Department of Radiation Oncology and Image Applied Therapy, Kyoto University Graduate School of Medicine, 54 Shogoin Kawahara cho, Sakyo ku, Kyoto, 606 8507, Japan
    J Radiat Res 53:777-84. 2012
    ..8% on average compared with the application of BPL. The appropriateness of switching heterogeneity correction algorithms and dose prescription methods should be carefully validated from a clinical viewpoint...
  22. doi request reprint Positional accuracy of novel x-ray-image-based dynamic tumor-tracking irradiation using a gimbaled MV x-ray head of a Vero4DRT (MHI-TM2000)
    Nobutaka Mukumoto
    Department of Radiation Oncology and Image Applied Therapy, Kyoto University, Kyoto, Japan
    Med Phys 39:6287-96. 2012
    ..To verify the positional accuracy of a novel x-ray-image-based dynamic tumor-tracking (DTT) irradiation technique using the gimbaled MV x-ray head of a Vero4DRT (MHI-TM2000)...
  23. doi request reprint Evaluation of dynamic tumour tracking radiotherapy with real-time monitoring for lung tumours using a gimbal mounted linac
    Yukinori Matsuo
    Department of Radiation Oncology and Image Applied Therapy, Graduate School of Medicine, Kyoto University, Kyoto, Japan Electronic address
    Radiother Oncol 112:360-4. 2014
    ..To evaluate feasibility and acute toxicities after dynamic tumour tracking (DTT) irradiation with real-time monitoring for lung tumours using a gimbal mounted linac...
  24. doi request reprint Intrafractional tracking accuracy in infrared marker-based hybrid dynamic tumour-tracking irradiation with a gimballed linac
    Nobutaka Mukumoto
    Department of Radiation Oncology and Image Applied Therapy, Kyoto University Graduate School of Medicine, Japan
    Radiother Oncol 111:301-5. 2014
    ..To verify the intrafractional tracking accuracy in infrared (IR) marker-based hybrid dynamic tumour tracking irradiation ("IR Tracking") with the Vero4DRT...
  25. doi request reprint Intra- and interfractional variations in geometric arrangement between lung tumours and implanted markers
    Nami Ueki
    Department of Radiation Oncology and Image Applied Therapy, Graduate School of Medicine, Kyoto University, Japan
    Radiother Oncol 110:523-8. 2014
    ..To quantify the intra- and interfractional variations between lung tumours and implanted markers...
  26. doi request reprint Accuracy verification of infrared marker-based dynamic tumor-tracking irradiation using the gimbaled x-ray head of the Vero4DRT (MHI-TM2000)
    Nobutaka Mukumoto
    Department of Radiation Oncology and Image Applied Therapy, Graduate School of Medicine, Kyoto University, Kyoto 606 8507, Japan
    Med Phys 40:041706. 2013
    ..To verify the accuracy of an infrared (IR) marker-based dynamic tumor-tracking irradiation system (IR tracking) using the gimbaled x-ray head of the Vero4DRT (MHI-TM2000)...
  27. pmc The impact of abdominal compression on outcome in patients treated with stereotactic body radiotherapy for primary lung cancer
    Wambaka Ange Mampuya
    Department of Radiation Oncology and Image Applied Therapy, Graduate School of Medicine, Kyoto University, 54 Kawahara cho, Shogoin, Sakyo ku, Kyoto 606 8507, Japan
    J Radiat Res 55:934-9. 2014
    ..The present study suggests that AC might be associated with a worse LC rate after SBRT using a bony-structure-based set-up...
  28. ncbi request reprint Dosimetric characterization of a multileaf collimator for a new four-dimensional image-guided radiotherapy system with a gimbaled x-ray head, MHI-TM2000
    Mitsuhiro Nakamura
    Department of Radiation Oncology and Image Applied Therapy, Graduate School of Medicine, Kyoto University, Kyoto 606 8507, Japan
    Med Phys 37:4684-91. 2010
    ..To present the dosimetric characterization of a multileaf collimator (MLC) for a new four-dimensional image-guided radiotherapy system with a gimbaled x-ray head, MHI-TM2000...
  29. doi request reprint Detailed dosimetric evaluation of intensity-modulated radiation therapy plans created for stage C prostate cancer based on a planning protocol
    Yoshiki Norihisa
    Department of Radiation Oncology and Image Applied Therapy, Graduate School of Medicine, Kyoto University, 54 Shogoin Kawahara cho, Sakyo ku, Kyoto 606 8507, Japan
    Int J Clin Oncol 17:505-11. 2012
    ..The aim of this study was to evaluate the dose specifications of our IMRT treatment plans for locally advanced prostate cancer...
  30. pmc Guidelines for respiratory motion management in radiation therapy
    Yukinori Matsuo
    Department of Radiation Oncology and Image Applied Therapy, Kyoto University Graduate School of Medicine, 54 Shogoin Kawaharacho, Sakyo ku, Kyoto shi, Kyoto 606 8507, Japan
    J Radiat Res 54:561-8. 2013
    ....
  31. doi request reprint Dosimetric comparison of Acuros XB, AAA, and XVMC in stereotactic body radiotherapy for lung cancer
    Yusuke Tsuruta
    Division of Clinical Radiology Service, Kyoto University Hospital, Kyoto 606 8507, Japan
    Med Phys 41:081715. 2014
    ..To compare the dosimetric performance of Acuros XB (AXB), anisotropic analytical algorithm (AAA), and x-ray voxel Monte Carlo (XVMC) in heterogeneous phantoms and lung stereotactic body radiotherapy (SBRT) plans...
  32. doi request reprint A feasibility study on reduction of the entrance-surface dose to neonates by use of a new digital mobile X-ray system
    Satoru Utsunomiya
    Department of Radiation Oncology and Image Applied Therapy, Kyoto University Graduate School of Medicine, 54 Shogoin Kawaracho, Sakyoku, Kyoto 606 8507, Japan
    Radiol Phys Technol 6:157-61. 2013
    ..5-cm phantom, for one exposure. The doses measured around the incubator were 0.1-0.6 μSv or below measurable limits. Use of the new device demonstrates the potential of reducing the ESD to the patient and operator...
  33. ncbi request reprint [Impact of optimization algorithms on the intensity map in IMRT treatment planning.]
    Mari Shimada
    Department of Medical Physics and Engineering, Osaka University, Graduate School of Medicine, 1 7 Yamadaoka, Suita Shi, Osaka 565 0871, Japan
    Igaku Butsuri 26:97-107. 2006
    ..The smoothing filter decreased the fluctuation in intensity maps of SA. In conclusion, it is important to understand impacts of optimization algorithms on the intensity map and the dose distribution...
  34. doi request reprint Accuracy of positional correction for the floor-mounted kV X-ray IGRT system in angled couch positions
    Satoshi Koubuchi
    Division of Therapeutic Radiology and Oncology, Kyoto University Hospital, Kyoto, Japan
    Radiol Phys Technol 7:373-8. 2014
    ..49 mm at a treatment couch angle of -45°. These results indicate that the image-guide system provides accuracy within about 0.50 mm regardless of the positional correction even after rotation of the treatment couch...