Article
Radiology, Nuclear Medicine & Medical Imaging
Dandan Wang, Yueju Yin, Qichao Zhou, Zirong Li, Xingmin Ma, Yong Yin, Baosheng Li, Tong Bai, Dapeng Li, Jian Zhu
Summary: This study aimed to identify dosimetric parameters associated with acute hematological toxicity in cervical cancer patients receiving radiation therapy and chemotherapy, and found an NTCP model associated with hematological toxicity. The results showed that the volume of pelvic bone marrow was closely related to hematological toxicity, with NTCP being a stronger predictor of toxicity.
Article
Oncology
Ziyu Le, Dongmei Wu, Xuming Chen, Lei Wang, Yi Xu, Guoqi Zhao, Chengxiu Zhang, Ying Chen, Ye Hu, Shengyu Yao, Tingfeng Chen, Jiangping Ren, Guang Yang, Yong Liu
Summary: The study aims to establish a predictive model for acute severe hematologic toxicity (HT) during radiotherapy in patients with cervical or endometrial cancer. It investigates the integration of clinical features and computed tomography (CT) radiomics features of the pelvic bone marrow (BM) to define a more precise model. The model combines clinical and radiomics features and achieves a higher area under the receiver operating characteristic curve (AUC) compared to models based on clinical or radiomics features alone. Further investigation is warranted to explore the value of pelvic BM radiomics in chemoradiotherapy-induced HT.
RADIOTHERAPY AND ONCOLOGY
(2023)
Review
Oncology
Anouk Corbeau, Sander C. Kuipers, Stephanie M. de Boer, Nanda Horeweg, Mischa S. Hoogeman, Jeremy Godart, Remi A. Nout
Summary: This systematic review examined the relationship between bone marrow dose and hematologic toxicity in patients with locally advanced cervical cancer undergoing primary cisplatin-based chemoradiation. Studies using whole pelvic bone contour (PB) as the bone marrow definition detected significant associations with specific volume parameters (V10, V20, V40) and provided recommended cut-off values. However, studies using lower density marrow spaces (PBM) or active bone marrow (ABM) as proxies for bone marrow found limited associations with hematologic toxicity.
RADIOTHERAPY AND ONCOLOGY
(2021)
Review
Oncology
Pixiao Zhou, Ying Zhang, Songgui Luo, Shuxu Zhang
Summary: Pelvic (active) bone marrow sparing radiotherapy can effectively reduce hematologic toxicities without increasing gastrointestinal and urological toxicities, showing potential clinical benefits that need to be further validated in randomized controlled trials.
RADIOTHERAPY AND ONCOLOGY
(2021)
Article
Oncology
Xiaojing Yang, Zhen Li, Lihua Zhang, Hongling Li, Xinmiao Yang, Yi Sun, Lijun Liu, Jie Fu
Summary: This study analyzed the characteristics and factors influencing acute hematological toxicity (HT) during concurrent chemoradiotherapy (CCRT) for cervical cancer and provided reference data for clinical practice. The results showed that the incidence of leukopenia, anemia, thrombocytopenia, and neutropenia was 49.1%, 2.7%, 1.8%, and 20.5%, respectively. Acute HT was associated with the duration of radiotherapy and the volume of different radiotherapy doses received at different parts in the pelvic bone marrow.
Article
Oncology
ShanBing Wang, Jiapei Liu, Kaijian Lei, Yuming Jia, Chunxiu Wang, Xia Zhang, Ting Li
Summary: This study aimed to test the efficacy of SPECT-defined ABMS VMAT in reducing grade 3+ acute HT in locally advanced cervical cancer patients treated with chemoradiotherapy. The results showed that ABMS VMAT significantly reduced the incidence of grade 3+ acute HT and improved chemotherapy delivery. However, there was weak evidence of the effect on distant metastasis.
Article
Oncology
Wei Huang, Jun Dang, Ying Li, Hai-xia Cui, Wen-li Lu, Qing-feng Jiang
Summary: This study aimed to explore feasible dosimetric constraints for pelvic bone marrow (PBM) in rectal cancer patients undergoing chemo-radiotherapy. The results showed that applying PBM dosimetric constraints can significantly reduce radiation dose to PBM and lower the incidence of acute hematological toxicity.
FRONTIERS IN ONCOLOGY
(2021)
Article
Oncology
Xiaoyong Xiang, Zhen Ding, Qi Zeng, Lingling Feng, Chunyan Qiu, Dongjie Chen, Jiawei Lu, Ning Li
Summary: This study aimed to investigate the clinical and dosimetric predictors of acute hematologic toxicity (HT) in cervical cancer patients treated with concurrent chemotherapy and volumetric-modulated arc therapy (VMAT). The results showed that the changing trend of absolute monocyte count (AMC) can be used to predict the nadirs of absolute white blood cells (WBC) count and absolute neutrophil count (ANC). Chemotherapy regimens and the total pelvic bone volume reaching 20% dose limit (TPB_V20) were identified as independent risk factors for developing grade ≥ 3 HT.
RADIATION ONCOLOGY
(2022)
Article
Oncology
Jin-Jie Yan, Shan-Shan Guo, Da-Feng Lin, Li-Ting Liu, Sai-Lan Liu, Bei-Bei Xiao, Jin-Hao Yang, Dong-Xiang Wen, Zhen-Chong Yang, Yu-Jing Liang, Qing-Nan Tang, Chao Lin, Xiao-Yun Li, Xue-Song Sun, Ji-Bin Li, Lin-Quan Tang, Qiu-Yan Chen, Hai-Qiang Mai
Summary: This study successfully established and validated an NTCP model and nomogram for predicting acquired nasal cavity stenosis and atresia in nasopharyngeal carcinoma patients after radiotherapy, providing a valuable tool for risk assessment and management of this complication.
RADIOTHERAPY AND ONCOLOGY
(2021)
Article
Oncology
Bailey Nelson, Dawit G. Tadesse, Mickaela Sudhoff, Kyle Wang, Teresa Meier, Anthony Mascia, Jordan Kharofa
Summary: This study compared the hematologic toxicity in anal cancer patients treated with intensity modulated proton therapy (IMPT) versus intensity modulated radiation therapy (IMRT). The results showed that IMPT resulted in lower doses of pelvic bone marrow and active bone marrow compared to IMRT. However, there was no significant difference in hematologic toxicity between the two groups.
AMERICAN JOURNAL OF CLINICAL ONCOLOGY-CANCER CLINICAL TRIALS
(2022)
Article
Oncology
Xiaohang Qin, Cong Wang, Guanzhong Gong, Lizhen Wang, Ya Su, Yong Yin
Summary: This study aimed to use functional MR radiomic features to analyze the changes in pelvic bone marrow (PBM) during concurrent chemoradiotherapy (CCRT) for cervical cancer patients, and establish the relationship with hematologic toxicity. The results showed that functional MR radiomics can effectively detect microscopic changes in bone marrow and provide an objective reference for bone marrow protection and dose limitation.
Article
Radiology, Nuclear Medicine & Medical Imaging
Hana Malikova, Miroslava Burghardtova, Klara Fejfarova, Katarina Nadova, Jiri Weichet
Summary: This study aimed to identify late and very late radiation-related comorbidities in young females who survived >= 5 years since radical radiotherapy for advanced cervical cancer. The results showed that a significant proportion of patients experienced severe radiation-related toxicities, with some cases leading to life-threatening complications. The study highlights the importance of regular follow-up and imaging scans for females after radical radiotherapy.
QUANTITATIVE IMAGING IN MEDICINE AND SURGERY
(2021)
Article
Oncology
Tianyu Meng, Xiangxi Meng, Xiaoxia Xu, Xiaofan Li, Zhi Yang, Nan Li
Summary: This study evaluated the value of (18)FDG PET/CT metabolic parameters in predicting hematological toxicity during chemoradiotherapy for locally advanced cervical cancer. The results showed that baseline BMACT% could help predict the severity of hematological toxicity.
FRONTIERS IN ONCOLOGY
(2022)
Article
Oncology
Roni Hytonen, Reynald Vanderstraeten, Max Dahele, Wilko F. A. R. Verbakel
Summary: The study found that deviations in beam angle and number had minimal effects on plan quality, indicating the robustness of the KBP model to different beam arrangements. Knowledge-based planning solutions have significantly improved treatment planning.
Article
Multidisciplinary Sciences
Joshua DeAguero, Tamara Howard, Donna Kusewitt, Adrian Brearley, Abdul-Mehdi Ali, James H. Degnan, Stephen Jett, John Watt, G. Patricia Escobar, Karol Dokladny, Brent Wagner
Summary: The complications caused by MRI contrast agents include acute kidney injury, gadolinium exposure symptoms/disease, gadolinium encephalopathy, and systemic fibrosis. The active ingredient, gadolinium, is a non-physiological metal. The study found that MRI contrast agent treatment resulted in vesicles and mitochondriopathy in renal epithelium, with gadolinium and phosphorus rich intracellular precipitates and lipid droplets. It is concluded that MRI contrast agents are not physiologically inert and their long-term safety, especially with repeated use, should be further studied.
SCIENTIFIC REPORTS
(2023)
Article
Oncology
Join Y. Luh, Kevin Albuquerque, Cheewai Cheng, Ralph P. Ermoian, Nima Nabavizadeh, Homayon Parsai, John C. Roeske, Stephanie E. Weiss, Raymond B. Wynn, Yan Yu, Seth A. Rosenthal, Alan Hartford
AMERICAN JOURNAL OF CLINICAL ONCOLOGY-CANCER CLINICAL TRIALS
(2020)
Article
Oncology
Iris Rusu, John Roeske, Abhishek Solanki, Hyejoo Kang
Summary: The study aims to automate the treatment planning and delivery of hippocampal-sparing whole brain irradiation (HS-WBRT) using a combination of RapidPlan (RP) knowledge-based planning model and HyperArc (HA) technology. The RP-HA plans demonstrated improved dosimetric performance compared to RP and VMAT plans, as well as shorter planning and delivery time. The automation provided by RP-HA method enables standardized plan quality, increased efficiency, and improved patient care.
Article
Oncology
Lucas K. Vitzthum, Vinit Nalawade, Paul Riviere, Whitney Sumner, Tyler Nelson, Loren K. Mell, Timothy Furnish, Brent Rose, Maria Elena Martinez, James D. Murphy
Summary: This study found significant differences in opioid prescription rates and pain-related outcomes by race and area-level poverty in older cancer patients. Non-Hispanic Black patients were significantly less likely to receive an opioid prescription, while patients from high-poverty areas were more likely to develop persistent opioid use and require pain-related emergency department visits.
JCO ONCOLOGY PRACTICE
(2021)
Article
Radiology, Nuclear Medicine & Medical Imaging
Marco Mueller, Per Poulsen, Rune Hansen, Wilko Verbakel, Ross Berbeco, Dianne Ferguson, Shinichiro Mori, Lei Ren, John C. Roeske, Lei Wang, Pengpeng Zhang, Paul Keall
Summary: The MATCH challenge aimed to provide a common methodology for measuring accuracy of MLTT approaches for lung SABR. Various MLTT approaches demonstrated sub-millimeter tracking accuracy and precision, paving the way for broader clinical implementation. The challenge is ongoing, with datasets and analysis software available online for future research support.
Article
Engineering, Biomedical
Peter Wagstaff, Pablo Minguez Gabina, Ricardo Minguez, John C. Roeske
Summary: A shallow neural network was trained and tested to accurately calculate microdosimetric parameters for alpha-particle emitters. The network demonstrated high accuracy and reliability, making it a valuable tool for such studies.
PHYSICS IN MEDICINE AND BIOLOGY
(2022)
Article
Biology
Mert Cananoglu, Pervin Hurmuz, Mete Yeginer, Gokhan Ozyigit
Summary: This study compared the dosimetric effects of three total body irradiation (TBI) techniques delivered by a standard linear accelerator and concluded that the Standard SSD VMAT technique is superior in sparing the lung tissue. All three techniques were found to be feasible in clinical practice with acceptable dose homogeneity.
RADIATION AND ENVIRONMENTAL BIOPHYSICS
(2023)
Article
Radiology, Nuclear Medicine & Medical Imaging
Mandeep Kaur, Peter Wagstaff, Hassan Mostafavi, Mathias Lehmann, Daniel Morf, Liangjia Zhu, Hyejoo Kang, Michal Walczak, Matthew M. Harkenrider, John C. Roeske
Summary: This study evaluated the impact of various noise reduction algorithms and template matching parameters on the accuracy of markerless tumor tracking using dual-energy imaging. The results showed that noise reduction strategies combined with the optimal selection of band-pass filter parameters can improve the accuracy and TSR of MTT for lung tumors.
JOURNAL OF APPLIED CLINICAL MEDICAL PHYSICS
(2022)
Editorial Material
Oncology
Loren J. Mell, Stuart J. Wong
JOURNAL OF CLINICAL ONCOLOGY
(2023)
Editorial Material
Oncology
Emrullah Yilmaz, Nofisat Ismaila, Raetasha Dabney, Nabil F. Saba, Loren K. Mell
JCO ONCOLOGY PRACTICE
(2023)
Article
Oncology
Alexander R. Podgorsak, Bhanu P. Venkatesulu, Mohammad Abuhamad, Matthew M. Harkenrider, Abhishek A. Solanki, John C. Roeske, Hyejoo Kang
Summary: The study found that using a deep-learning-based method for synthesizing MRI can improve workflow efficiency in prostate HDR brachytherapy treatment planning, reduce uncertainties in CT-to-MRI registration, without compromising the accuracy of treatment plans and dose control of critical organs.
Article
Radiology, Nuclear Medicine & Medical Imaging
Mandeep Kaur, Jason Luce, Mathias Lehmann, Daniel Morf, Liangjia Zhu, Hyejoo Kang, Michal Walczak, Matthew M. Harkenrider, John C. Roeske
Summary: The purpose of this study was to investigate the effect of megavoltage (MV) scatter on the accuracy of markerless tumor tracking (MTT) using dual energy (DE) imaging, and to propose a post-processing technique to mitigate the impact of MV scatter on DE-MTT. The results showed that MV scatter significantly affects the tracking accuracy of lung tumors in DE images. The application of wavelet-FFT filtering can improve the accuracy of DE-MTT.
JOURNAL OF APPLIED CLINICAL MEDICAL PHYSICS
(2023)
Article
Oncology
Lei Gao, Tahir I. Yusufaly, Casey W. Williamson, Loren K. Mell
Summary: This study developed an atlas-based method for fully automated segmentation of bony structures from whole-body CT and evaluated its performance compared to manual segmentation. The results showed that the segmentation method with a postprocessing module had higher accuracy and agreement compared to the method without postprocessing, with lower relative volume errors.
PRACTICAL RADIATION ONCOLOGY
(2023)
Article
Engineering, Biomedical
Hyejoo Kang, Alexander R. Podgorsak, Bhanu Prasad Venkatesulu, Anjali L. Saripalli, Brian Chou, Abhishek A. Solanki, Matthew Harkenrider, Steven Shea, John C. Roeske, Mohammed Abuhamad
Summary: This study aims to generate synthetic MRI images with sufficient soft-tissue contrast from CT scans using a generative adversarial network. The accuracy of prostate segmentation on the synthetic MRI images is comparable to that on the real MRI images. The PxCGAN model outperforms other models in terms of soft-tissue contrast. The findings of this study are significant.
PHYSICS IN MEDICINE AND BIOLOGY
(2023)
Article
Oncology
Derek A. Fiedler, Sabrina Hoffman, John C. Roeske, Courtney L. Hentz, William Small Jr, Hyejoo Kang
Summary: The study investigated the skin dose enhancements of brass mesh bolus (BMB) and a transparent polymer-gel bolus (PGB) for breast treatment delivery, comparing them to tissue-equivalent bolus. Results showed that BMB and PGB had comparable skin dose enhancements to tissue-equivalent bolus, with BMB resulting in average skin doses of 92.8% and 102.1% for 1- and 2 layers, and PGB resulting in average skin doses of 94.8%, 98.2%, and 99.7% for 3, 5, and 10 mm tissue-equivalent, respectively.
Article
Oncology
Neslihan Sarigul, Fazli Yagiz Yedekci, Mete Yeginer, Fadil Akyol, Haluk Utku
REPORTS OF PRACTICAL ONCOLOGY AND RADIOTHERAPY
(2020)