1. Eiichi Tanaka, Ph.D. (1927–2021): pioneer of the gamma camera and PET in nuclear medicine physics

   • Hideo Murayama
   • Taiga Yamaya

   Editorial 19 December 2022 Pages: 1 - 7

   

2. Announcement of nominations for the Radiological Physics and Technology awards 2022

   • Nobuyuki Kanematsu
   • Fujio Araki
   • Taiga Yamaya

   Editorial 28 January 2023 Pages: 8 - 9

3. Small-field dosimetry with detector-specific output correction factor for single-isocenter stereotactic radiotherapy of single and multiple brain metastases

   • Tomohiro Ono
   • Kohei Kawata
   • Takashi Mizowaki

   Research Article 22 October 2022 Pages: 10 - 19

   

4. Deep learning model for breast cancer diagnosis based on bilateral asymmetrical detection (BilAD) in digital breast tomosynthesis images

   • Daiki Shimokawa
   • Kengo Takahashi
   • Takuya Ueda

   Research Article 07 November 2022 Pages: 20 - 27

   

5. Automated volume measurement of abdominal adipose tissue from entire abdominal cavity in Dixon MR images using deep learning

   • Masato Takahashi
   • Tomomi Takenaga
   • Shinji Abe

   Research Article 08 November 2022 Pages: 28 - 38

   

6. Evaluation of x-ray effective focal spot size dependency on x-ray exposure settings using edge response analysis

   • Yurie Shimakawa
   • Masayuki Nishiki
   • Noriyuki Yanagawa

   Research Article 14 December 2022 Pages: 39 - 47

   

7. Correction: Evaluation of x-ray effective focal spot size dependency on x-ray exposure settings using edge response analysis

   • Yurie Shimakawa
   • Masayuki Nishiki
   • Noriyuki Yanagawa

   Correction 25 January 2023 Pages: 48 - 48

8. Dedicated phantom tools using traceable ⁶⁸Ge/⁶⁸Ga point-like sources for dedicated-breast PET and positron emission mammography scanners

   • Mio Okamoto
   • Tomoyuki Hasegawa
   • Masatoshi Hashimoto

   Research Article 09 January 2023 Pages: 49 - 56

   

9. Shielding performance of multi-metal nanoparticle composites for diagnostic radiology: an MCNPX and Geant4 study

   • Nikan Asadpour
   • Reza Malekzadeh
   • Ahmad Shanei

   Research Article 23 December 2022 Pages: 57 - 68

   

10. Characteristics of a real-time radiation exposure dosimetry system using a synthetic ruby for radiotherapy

    • Kenki Matsumoto
    • Ayaka Maruyama
    • Yoshiyuki Hosokai

    Research Article 12 December 2022 Pages: 69 - 76

    

11. Characteristics of the deep learning-based virtual monochromatic image with fast kilovolt-switching CT: a phantom study

    • Yuna Katsuyama
    • Tsukasa Kojima
    • Toyoyuki Kato

    Research Article 30 December 2022 Pages: 77 - 84

    

12. Determination of scattered radiation dose for radiological staff during portable chest examinations of COVID-19 patients

    • Nutthapong Moonkum
    • Supattra Jitchom
    • Gunjanaporn Tochaikul

    Research Article 19 January 2023 Pages: 85 - 93

    

13. Modified signal-to-noise ratio in the liver using the background-to-lung activity ratio to assess image quality of whole-body ¹⁸F-fluorodeoxyglucose positron emission tomography

    • Shozo Yamashita
    • Koichi Okuda
    • Kunihiko Yokoyama

    Research Article 23 January 2023 Pages: 94 - 101

    

14. Monte Carlo simulation study to explore optimum conditions for Astatine-211 SPECT

    • Akihiko Takahashi
    • Ryosuke Kajiya
    • Masayuki Sasaki

    Research Article 31 January 2023 Pages: 102 - 108

    

15. Photon dose rate distribution inside and outside a brachytherapy room

    • Adila Hanim Aminordin Sabri
    • Suffian Mohamad Tajudin
    • Takuya Furuta

    Research Article 02 February 2023 Pages: 109 - 117

    

16. Evaluation of apparent diffusion coefficient of two-dimensional BLADE turbo gradient- and spin-echo diffusion-weighted imaging with a breast phantom

    • Akiko Ohki
    • Hajime Sagawa
    • Kun Zhou

    Technical Note 03 January 2023 Pages: 118 - 126

    

17. Prediction of body weight from chest radiographs using deep learning with a convolutional neural network

    • Shota Ichikawa
    • Hideki Itadani
    • Hiroyuki Sugimori

    Technical Note 13 January 2023 Pages: 127 - 134