Articles

1. Adjustment of scan delay for bolus tracking with cardiothoracic ratio of CT scout image for hepatic artery phase of hepatic dynamic CT

   • Koji Muroga
   • Kanta Kitahara

   Research Article 17 May 2024

   

2. Correction: Recommendation for reducing the crystalline lens exposure dose by reducing imaging field width in cone-beam computed tomography for image-guided radiation therapy: an anthropomorphic phantom study

   • Tatsuya Yoshida
   • Koji Sasaki
   • Yoshiyuki Kawasaki

   Correction 15 May 2024

3. Influence of Gd-EOB-DTPA on proton-density fat fraction in the liver using chemical shift-encoded magnetic resonance imaging at 3-T

   • Makoto Suzuki
   • Tatsuya Hayashi
   • Toshi Abe

   Research Article 10 May 2024

   

4. Variation in Hounsfield unit calculated using dual-energy computed tomography: comparison of dual-layer, dual-source, and fast kilovoltage switching technique

   • Shingo Ohira
   • Junji Mochizuki
   • Keiichi Nakagawa

   Research Article Open access 03 May 2024

   

5. A deep-learning-based scatter correction with water equivalent path length map for digital radiography

   • Masayuki Hattori
   • Hisato Tsubakiya
   • Tetsuya Yuasa

   Research Article 02 May 2024

   

6. Inter-fractional error and intra-fractional motion of prostate and dosimetry comparisons of patient position registrations with versus without fiducial markers during treatment with carbon-ion radiotherapy

   • Yuma Iwai
   • Shinichiro Mori
   • Shigeru Yamada

   Research Article 01 May 2024

   

7. Assessment of the deep learning-based gamma passing rate prediction system for 1.5 T magnetic resonance-guided linear accelerator

   • Ryota Tozuka
   • Noriyuki Kadoya
   • Keiichi Jingu

   Research Article 30 April 2024

   

8. Recommendation for reducing the crystalline lens exposure dose by reducing imaging field width in cone-beam computed tomography for image-guided radiation therapy: an anthropomorphic phantom study

   • Tatsuya Yoshida
   • Koji Sasaki
   • Yoshiyuki Kawasaki

   Research Article 30 April 2024

   

9. Predicting oxygen needs in COVID-19 patients using chest radiography multi-region radiomics

   • Sa-angtip Netprasert
   • Sararas Khongwirotphan
   • Yothin Rakvongthai

   Research Article 26 April 2024

   

10. Utility of a skin marker–less setup procedure using surface-guided imaging: a comparison with the traditional laser-based setup in extremity irradiation

    • Kei Yamashita
    • Takayuki Shimizu
    • Ryusuke Hara

    Clinical Technique 26 April 2024

    

11. Evaluation of overexposure risk when there is a space between the subject and the couch in computed tomography: a phantom study

    • Yuta Fujiwara
    • Yoshiki Kamihoriuchi
    • Takanori Masuda

    Technical Note 26 April 2024

    

12. An audit of patient radiation doses during interventional cardiology procedures in Uttarakhand, India, and establishment of local diagnostic reference levels

    • Satish C. Uniyal
    • Vikram Singh
    • Chandra Mohan Belwal

    Research Article 23 April 2024

    

13. Evaluation of hafnium oxide nanoparticles imaging characteristics as a contrast agent in X-ray computed tomography

    • Arash Safari
    • Maziyar Mahdavi
    • Masoud Haghani

    Research Article 17 April 2024

    

14. Simulation of time–intensity curve based on k-space filling in breast dynamic contrast-enhanced three-dimensional magnetic resonance imaging

    • Yasuo Takatsu
    • Tsuyoshi Ueyama
    • Tosiaki Miyati

    Technical Note 13 April 2024

    

15. Cameron’s impact on space biomedical sciences—expanding insights to Ng and Doi’s article

    • Alireza Mortazavi
    • S. M. J. Mortazavi

    Letter to the Editor 12 April 2024

    

16. Patient radiation exposure dose reduction using stent-enhanced image processing in percutaneous coronary intervention

    • Kazuya Mori
    • Toru Negishi
    • Takuji Tsuchida

    Research Article 05 April 2024

    

17. Monte carlo simulation study on the dose and dose-averaged linear energy transfer distributions in carbon ion radiotherapy

    • Akihisa Ishikawa
    • Yusuke Koba
    • Tatsuhiko Sato

    Technical Note 03 April 2024

    

18. An image-based metal artifact reduction technique utilizing forward projection in computed tomography

    • Katsuhiro Ichikawa
    • Hiroki Kawashima
    • Tadanori Takata

    Research Article Open access 28 March 2024

    

19. Native myocardial T₁ mapping using inversion recovery T₁-weighted turbo field echo sequence

    • Katsuhiro Kida
    • Takamasa Kurosaki
    • Sachiko Goto

    Research Article 26 March 2024

    

20. Setup time analysis for stereotactic body radiotherapy in O-ring linear accelerator without rotational correction

    • Biplab Sarkar
    • Anirudh Pradhan

    Technical Note 25 March 2024

    

21. Feasibility study of radioactivity estimation of ^99mTc and ¹²³I-labeled radiopharmaceuticals using shielded syringes

    • Yuto Nakamura
    • Narumi Yasuno

    Research Article 22 March 2024

    

22. Correction to: Deep learning-based PET image denoising and reconstruction: a review

    • Fumio Hashimoto
    • Yuya Onishi
    • Taiga Yamaya

    Correction Open access 16 March 2024

23. Commissioning and dosimetric verification of volumetric modulated arc therapy for multiple modalities using electronic portal imaging device-based 3D dosimetry system: a novel approach

    • Raghavendra Hajare
    • Sreelakshmi K K
    • Umesh mahantshetty

    Research Article 16 March 2024

    

24. Long-term geometric quality assurance of radiation focal point and cone-beam computed tomography for Gamma Knife radiosurgery system

    • Shingo Ohira
    • Toshikazu Imae
    • Keiichi Nakagawa

    Research Article Open access 11 March 2024

    

25. Denoising parameter dependence of coronary artery depictability in compressed sensing magnetic resonance angiography

    • Junji Takahashi
    • Yoshio Machida
    • Yuki Ohmoto-Sekine

    Research Article 09 March 2024

    

26. Subjective and objective image quality of low-dose CT images processed using a self-supervised denoising algorithm

    • Yuya Kimura
    • Takeru Q. Suyama
    • Hiroyuki Kudo

    Research Article 27 February 2024

    

27. Improved detection of cholesterol gallstones using quasi-material decomposition images generated from single-energy computed tomography images via deep learning

    • Kojiro Nishijima
    • Junji Shiraishi

    Research Article 23 February 2024

    

28. Improving image quality using the pause function combination to PROPELLER sequence in brain MRI: a phantom study

    • Kousaku Saotome
    • Koji Matsumoto
    • Tensho Yamao

    Technical Note 17 February 2024

    

29. Preclinical magnetic resonance imaging and spectroscopy in the fields of radiological technology, medical physics, and radiology

    • Shigeyoshi Saito
    • Junpei Ueda

    Review Article Open access 14 February 2024 Pages: 47 - 59

    

30. 3D-printed boluses for radiotherapy: influence of geometrical and printing parameters on dosimetric characterization and air gap evaluation

    • Simone Giovanni Gugliandolo
    • Shabarish Purushothaman Pillai
    • Bianca Maria Colosimo

    Research Article Open access 13 February 2024

    

31. John Roderick Cameron (1922–2005): Scientist, teacher, mentor, inventor, and philanthropist extraordinaire

    • Kwan Hoong Ng
    • Kunio Doi

    Editorial 12 February 2024 Pages: 1 - 8

    

32. Verification of image quality improvement of low-count bone scintigraphy using deep learning

    • Taisuke Murata
    • Takuma Hashimoto
    • Takashi Uno

    Research Article 10 February 2024 Pages: 269 - 279

    

33. Evaluation of attenuation correction method for head holder in brain perfusion single-photon emission computed tomography

    • Masahiro Nakashima
    • Yuta Yamazaki

    Technical Note 09 February 2024 Pages: 322 - 328

    

34. The effects of mega-voltage CT scan parameters on offline adaptive radiation therapy

    • Kento Hoshida
    • Ayumu Ohishi
    • Hidemichi Kawata

    Research Article 09 February 2024 Pages: 248 - 257

    

35. Deep learning-based PET image denoising and reconstruction: a review

    • Fumio Hashimoto
    • Yuya Onishi
    • Taiga Yamaya

    Review Article Open access 06 February 2024 Pages: 24 - 46

    

36. Directional vector visualization of scattered rays in mobile c-arm fluoroscopy

    • Kyoko Hizukuri
    • Toshioh Fujibuchi
    • Hiroyuki Arakawa

    Research Article 05 February 2024 Pages: 288 - 296

    

37. Selection of Radiological Physics and Technology Awards 2023

    • Nobuyuki Kanematsu
    • Fujio Araki
    • Taiga Yamaya

    Editorial 03 February 2024 Pages: 9 - 10

38. Development of an open project rectangular collimator for use with intraoral dental X-ray unit

    • Marina C. Poletto
    • Eduardo Thomazi
    • Cláudio A. Perottoni

    Technical Note 24 January 2024 Pages: 315 - 321

    

39. Investigation of ionization chamber perturbation factors using proton beam and Fano cavity test for the Monte Carlo simulation code PHITS

    • Yuya Nagake
    • Keisuke Yasui
    • Naoki Hayashi

    Research Article 23 January 2024 Pages: 280 - 287

    

40. Assessment of dosimetric approaches in evaluating radiation exposure for interventional cardiologists in Sri Lanka

    • Sachini Udara Wickramasinghe
    • Vijitha Ramanathan
    • Sivananthan Sarasanandarajah

    Research Article 19 January 2024 Pages: 258 - 268

    

41. Validating computer applications for calculating spatial resolution and noise property in CT using simulated images with known properties

    • Takeshi Inoue
    • Katsuhiro Ichikawa
    • Hiroki Kawashima

    Research Article 10 January 2024 Pages: 238 - 247

    

42. Possible mechanisms and simulation modeling of FLASH radiotherapy

    • Yuta Shiraishi
    • Yusuke Matsuya
    • Hisanori Fukunaga

    Review Article 06 January 2024 Pages: 11 - 23

    

43. Verifying institutionally developed hybrid 3D-printed coaxial cylindrical phantom for patient-specific quality assurance in stereotactic body radiation therapy of hepatocellular carcinoma

    • M. P. Arun Krishnan
    • M. Ummal Momeen

    Research Article 03 January 2024 Pages: 230 - 237

    

44. Development of an individual display optimization system based on deep convolutional neural network transition learning for somatostatin receptor scintigraphy

    • Shun Matsumoto
    • Yuki Nakahara
    • Junji Shiraishi

    Research Article 02 January 2024 Pages: 195 - 206

    

45. Efficient quality assurance for isocentric stability in stereotactic body radiation therapy using machine learning

    • Sana Salahuddin
    • Saeed Ahmad Buzdar
    • Lidia Strigari

    Research Article 31 December 2023 Pages: 219 - 229

    

46. Evaluation of deep learning reconstruction on diffusion-weighted imaging quality and apparent diffusion coefficient using an ice-water phantom

    • Tatsuya Hayashi
    • Shinya Kojima
    • Hiroshi Oba

    Research Article 28 December 2023 Pages: 186 - 194

    

47. Half-value layer measurements using solid-state detectors and single-rotation technique with lead apertures in spiral computed tomography with and without a tin filter

    • Atsushi Fukuda
    • Nao Ichikawa
    • Kosuke Matsubara

    Research Article 21 December 2023 Pages: 207 - 218

    

48. The effect of a pre-reconstruction process in a filtered back projection reconstruction on an image quality of a low tube voltage computed tomography

    • Masaki Takemitsu
    • Shohei Kudomi
    • Takuya Uehara

    Technical Note 15 December 2023 Pages: 306 - 314

    

49. Evaluation of patient radiation dose and risk of cancer from CT examinations

    • Saowapark Poosiri
    • Anchali Krisanachinda
    • Kitiwat Khamwan

    Research Article 04 December 2023 Pages: 176 - 185

    

50. Deep learning-based attenuation correction method in ^99mTc-GSA SPECT/CT hepatic imaging: a phantom study

    • Masahiro Miyai
    • Ryohei Fukui
    • Sachiko Goto

    Research Article 30 November 2023 Pages: 165 - 175