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Comprehensive Updates in the Role of Imaging for Multiple Myeloma Management Based on Recent International Guidelines

Lee K, Kim KW, Ko Y, Park HY, Chae EJ, Lee JH, Ryu JS, Chung HW

The diagnostic and treatment methods of multiple myeloma (MM) have been rapidly evolving owing to advances in imaging techniques and new therapeutic agents. Imaging has begun to play an important...
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Establishment of Local Diagnostic Reference Levels of Pediatric Abdominopelvic and Chest CT Examinations Based on the Body Weight and Size in Korea

Hwang JY, Choi YH, Yoon HM, Ryu YJ, Shin HJ, Kim HG, Lee SM, You SK, Park JE

Objective: The purposes of this study were to analyze the radiation doses for pediatric abdominopelvic and chest CT examinations from university hospitals in Korea and to establish the local diagnostic...
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Use of GammaPlan convolution algorithm for dose calculation on CT and cone-beam CT images

Ramachandran P, Perrett B, Dancewicz O, Seshadri V, Jones C, Mehta A, Foote M

Purpose: The aim of this study was to assess the suitability of using cone-beam computed tomography images (CBCTs) produced in a Leksell Gamma Knife (LGK) Icon system to generate electron...
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Novel nomogram-based integrated gonadotropin therapy individualization in in vitro fertilization/intracytoplasmic sperm injection: A modeling approach

Ebid AHIM, Motaleb SMA, Mostafa MI, Soliman MMA

Objective: This study aimed to characterize a validated model for predicting oocyte retrieval in controlled ovarian stimulation (COS) and to construct model-based nomograms for assistance in clinical decision-making regarding the...
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Cycle-Consistent Generative Adversarial Network: Effect on Radiation Dose Reduction and Image Quality Improvement in Ultralow-Dose CT for Evaluation of Pulmonary Tuberculosis

Yan C, Lin J, Li H, Xu J, Zhang T, Chen H, Woodruff HC, Wu G, Zhang S, Xu Y, Lambin P

Objective: To investigate the image quality of ultralow-dose CT (ULDCT) of the chest reconstructed using a cycle-consistent generative adversarial network (CycleGAN)-based deep learning method in the evaluation of pulmonary tuberculosis. Materials...
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Atypical Teratoid/Rhabdoid Tumor of the Central Nervous System in Children under the Age of 3 Years

Park M, Han JW, Hahn SM, Lee JA, Kim JY, Shin SH, Kim DS, Yoon HI, Hong KT, Choi JY, Kang HJ, Shin HY, Phi JH, Kim SK, Lee JW, Yoo KH, Sung KW, Koo HH, Lim DH, Shin HJ, Kim H, Koh KN, Im HJ, Ahn SD, Ra YS, Baek HJ, Kook H, Jung TY, Choi HS, Kim CY, Park HJ, Lyu CJ

Purpose Atypical teratoid/rhabdoid tumor (ATRT) is a highly aggressive malignancy with peak incidence in children aged less than 3 years. Standard treatment for central nervous system ATRT in children under...
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Utilization of Preventive Therapy in Korean Migraine Patients

Kim Y, Park S, Kim E, Je NK

Background: Migraine is a common neurological disorder that affects the quality of life and causes several health problems. Preventive migraine treatment can reduce migraine frequency, headache severity, and health care...
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Feasibility of Improving the Accuracy of Dose Calculation Using Hybrid Computed Tomography Images: A Phantom Study

Jeon H, Kim DW, Joo JH, Ki Y, Kim W, Park D, Nam J, Kim DH

Purpose: Kilovoltage computed tomography (kV-CT) is essential for radiation treatment planning. However, kV-CT images are significantly distorted by artifacts when a metallic prosthesis is present in the patient's body. Thus, the...
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Basic Physical Principles and Clinical Applications of Computed Tomography

Jung H

The evolution of X-ray computed tomography (CT) has been based on the discovery of X-rays, the inception of the Radon transform, and the development of X-ray digital data acquisition systems...
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Long-Term Durability of Infliximab for Pediatric Ulcerative Colitis: A Retrospective Data Review in a Tertiary Children's Hospital in Japan

Shimizu H, Arai K, Takeuchi I, Minowa K, Hosoi K, Sato M, Oka I, Kaburaki Y, Shimizu T

Purpose: The long-term efficacy and safety of infliximab (IFX) in children with ulcerative colitis (UC) have not been well-evaluated. Here, we reviewed the long-term durability and safety of IFX in...
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History of the Photon Beam Dose Calculation Algorithm in Radiation Treatment Planning System

Kim DW, Park K, Kim H, Kim J

Dose calculation algorithms play an important role in radiation therapy and are even the basis for optimizing treatment plans, an important feature in the development of complex treatment technologies such...
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The effect of deep inspiration breath-hold technique on left anterior descending coronary artery and heart dose in left breast irradiation

Sakyanun P, Saksornchai K, Nantavithya C, Chakkabat C, Shotelersuk K

Purpose: To determine the effect of the deep inspiration breath-hold (DIBH) technique on left anterior descending coronary artery (LAD) region and heart dose in left breast cancer irradiation. Materials...
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Development of Water-Filled Phantom and Comparision Film Dosimetry for Five Phantoms in Gamma Knife

Choi Y, Chun Kj, Chung HT, kim TH, Choi SH, Jang WI

  • KMID: 2510113
  • Prog Med Phys.
  • 2020 Sep;31(S1):S65.
Purpose: The objective of this study is to investigate the scattering effect of the plastic phantoms by determining FWHM and penumbra from the measurement of absorbed dose profile in Gamma...
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Predicting Dose-Volume Histograms for Organ at Risks Using Machine Learning in Head and Neck Tomotherapy

Kim Yb, Ju SG, Ahn YC, Cho BH, Kim Y

  • KMID: 2510112
  • Prog Med Phys.
  • 2020 Sep;31(S1):S63.
Purpose: Dose prediction models for organ at risks (OARs) were developed and validated for head and neck (H&N) Tomotherapy. Methods: 58 Tomotherapy plans for nasopharyngeal cancer (NPC) patients were employed in...
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Comparison of the Skin Dose in TPS with the Phantom Measurement for the Head and Neck Radiation Treatment Patients

Hong SM, Kim Sw, Cho B, Goh Y, Kim C, Lee M, Shin JB, Lee D, Yoon K, Noh S, Kang S, Kwak J, Jeong C, Park MJ

  • KMID: 2510096
  • Prog Med Phys.
  • 2020 Sep;31(S1):S53.
Purpose: Head and neck cancer patients are radiation-treated on the couch tops with thermoplastic mask for the immobilization of patients. However, dose perturbation is occurred by the mask and leads...
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Development of Dosimetric Verification System for Patient-Specific Quality Assurance of High-Dose-Rate Brachytherapy

Kang SW, Chung JB, Kim KH, Choi CH, Kang S, Cho W, Park HJ, Suh TS

  • KMID: 2510074
  • Prog Med Phys.
  • 2020 Sep;31(S1):S30.
Purpose: Although high-dose-rate brachytherapy (HDR-BT) is an effective treatment for cancer, it has a high risk of error. The aim of this study was to develop a dosimetric verification system...
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The Open Knowledge-Based Planning (OpenKBP) – An 2020 AAPM Grand Challenge: Sharing Experience and Achievement

Chun J, Hira S, Zhang H, Park JC, Kim H, Kim JS

  • KMID: 2510041
  • Prog Med Phys.
  • 2020 Sep;31(S1):S13.
Purpose: Knowledge-based planning (KBP) research is flourishing, but many results are reported using institution-specific datasets and evaluation metrics. While many competing approaches have reported positive results, comparing them is difficult...
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Preliminary Study for Dose Super-Resolution in Volumetric Modulated Arc Therapy Using Cascaded Networks

Shin DS, Kim KH, Kang SW, Kang SH, Kim TH, Suh TS, Chung JB

  • KMID: 2510039
  • Prog Med Phys.
  • 2020 Sep;31(S1):S12.
Purpose: Dose grid size is one of factors that affect accuracy of dose calculation. Although use of a small grid can improve the accuracy, it is not typically used in...
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A Proof-of-Principle Experiment of Hybrid Prompt Gamma-Positron Emission Tomography System for In Vivo Dose Verification in Proton Therapy

Choi HJ, Cheon BW, Lee HC, Min CH

  • KMID: 2510029
  • Prog Med Phys.
  • 2020 Sep;31(S1):S3.
Purpose: In proton therapy, the uncertainty over determining proton range may adversely affect on the actual dose distribution owing to the steep dose gradient at the distal edge of the...
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Incidence of Major Bleeding in Patients with Pulmonary Thromboembolism Treated with Fixed Dose Alteplase 100 mg

Bae DH, Lee WJ, Shin YM

Background: Acute pulmonary thromboembolism (PTE) is a critical cardiopulmonary condition associated with high mortality and morbidity. In massive PTE, recently referred to as high risk PTE, the routine protocol for...
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