Complexity metrics for Tomotherapy: application to the verification of transferred plans [0.03%]
Tomotherapy复杂性指标：转机计划验证中的应用
L Simon,J Seguret,L Vieillevigne
L Simon
Purpose: To study the impact of transferring a treatment plan between two machines on the delivered dose, new complexity metrics based on Leaf Opening and Closing Times (LOT and LCT) were developed. ...
Maximilian Göppel,Patrizia Kunert,Hugo de Las Heras Gala et al.
Maximilian Göppel et al.
In diagnostic radiology, it is essential to ensure that image quality is sufficiently good to support accurate diagnosis and patient safety. This is in accordance with the ALARA principle of keeping radiation exposure as low as reasonably a...
A probabilistic framework for risk-bounded patient-specific quality assurance in volumetric modulated arc therapy based on measured and calculated gamma pass rates [0.03%]
基于测量和计算的gamma通过率的风险限制个性化质子治疗体积调强弧形治疗的质量保证的概率框架
Markus Schiebl,Petra Trnková,Gerd Heilemann et al.
Markus Schiebl et al.
This study introduces a probabilistic framework for patient-specific quality assurance (PSQA) in volumetric modulated arc therapy (VMAT), using gamma pass rates obtained from both measurement-based and independent calculation-based PSQA. Th...
Lena Kaiser,Thomas Wendler,Deni Hardiansyah et al.
Lena Kaiser et al.
Artificial intelligence (AI) has vast potential to reshape nuclear medicine. Applications can be found at every step of the processing workflow, including image acquisition, image reconstruction, enhancement, and registration, segmentation,...
Apparent tissue sodium concentration quantification across reconstruction methods with different partial volume effect reduction - A preliminary study [0.03%]
一种基于不同部分容积效应校正重建方法的表观组织钠浓度定量的初步研究
Olgica Zaric,Carmen Leser,Vladimir Juras et al.
Olgica Zaric et al.
Introduction: In sodium (23Na) magnetic resonance imaging (MRI), partial volume effects (PVE) are one of the most common causes of errors in the in vivo quantification of apparent tissue sodium concentration (aTSC). Advan...
Time-of-flight: The last frontier in positron emission tomography instrumentation [0.03%]
时间飞行：正电子发射断层成仪的最后一片处女地
Georgios Konstantinou,Paul Lecoq
Georgios Konstantinou
Positron emission tomography (PET) instrumentation has seen significant advances over the last 20 years. In particular, substantial improvement in electronics and scalability have allowed new clinical scanners to combine high gamma stopping...
Error detection sensitivity and operational efficiency of phantom-based and phantom-less patient-specific quality assurance in proton therapy [0.03%]
基于模体和不基于模体的质子治疗患者个体化治疗计划质量保证的检测灵敏度及运行效率比较研究
Lukas Cornelius Wolter,Yazeed Ghannam,Kenneth Poels et al.
Lukas Cornelius Wolter et al.
Background and purpose: In proton therapy (PT), patient-specific quality assurance (PSQA) is an important component of the measures which ensure accurate and safe treatment delivery. Traditional phantom-based PSQA is reso...
Johann Brand,Juliane Szkitsak,Rafael Lobao et al.
Johann Brand et al.
Volumetric-modulated arc therapy (VMAT) treatment planning for lung tumors requires balancing adequate planning target volume (PTV) coverage with optimal organ-at-risk (OAR) sparing. However, plan quality varies due to differences in planne...
Averaged anatomy CT in weekly treatment quality control and offline adaptive intensity modulated proton therapy of head and neck cancers [0.03%]
头颈癌周治疗质量控制和脱机自适应调强质子治疗的平均解剖CT研究
Mark Ka Heng Chan
Mark Ka Heng Chan
Adaptive intensity modulated proton therapy (IMPT) for head and neck cancer commonly relies on weekly repeated CT scans (rCTs) to assess anatomical changes and determine whether plan adaptation is required. However, a single rCT often fails...
M R Steffner,T Felgenhauer,B Szermerski et al.
M R Steffner et al.
Positron Emission Tomography (PET) has undergone disruptive advancements in the past two decades. One of the most impactful technological developments is the introduction of Large Axial Field-of-View PET/CT (LAFOV PET/CT). These systems are...