A LQ-based kinetic model formulation for exploring dynamics of treatment response of tumours in patients [0.03%]
基于LQ的肿瘤动力学模型的构建及在探索患者治疗反应动态中的应用研究
Stephan Scheidegger,Gerd Lutters,Stephan Bodis
Stephan Scheidegger
A kinetic bio-mathematical, linear-quadratic (LQ) based model description for clonogenic survival is presented. In contrast to widely used formulations of models, a dynamic approach based on ordinary differential equations for coupling a re...
[Comparison of long-axis and short-axis PROPELLER-EPI for diffusion-weighted Magnetic Resonance Imaging] [0.03%]
长轴与短轴PROPELLER-EPI扩散加权磁共振成像的比较研究
Matthias RoBbach,Thies H Jochimsen,Karl-Heinz Herrmann et al.
Matthias RoBbach et al.
Echo planar imaging (EPI) in combination with PROPELLER allows high-resolution diffusion-weighted imaging. In this study, the image quality of short-axis and long-axis PROPELLER was compared and optimized using phantom and in vivo data. Fur...
Comparative Study
Zeitschrift fur medizinische Physik. 2011;21(1):33-41. DOI:10.1016/j.zemedi.2010.05.003 2011
Influence of tissue conductivity changes on the EEG signal in the human brain: a simulation study [0.03%]
人脑组织电导率变化对EEG信号影响的模拟研究
Thomas Jochmann,Daniel Güllmar,Jens Haueisen et al.
Thomas Jochmann et al.
Tissue disorders due to brain pathologies, like tumors, ischemia, or vasogenic edema, are known to impact the propagation of electrical fields. By using the finite element method the EEG forward problem was solved within an adapted subspace...
Software-guided standardization of manual landmark data in medical images [0.03%]
软件指导的手动地标数据的标准化在医学图像中的应用
Hermann Prüm,Lars Gerigk,Christian Hintze et al.
Hermann Prüm et al.
It is crucial to evaluate registration algorithms in order to make them available in clinical practice. Several evaluation strategies have been proposed in the past, and one approach is to evaluate these algorithms with intrinsic anatomical...
Comparative Study
Zeitschrift fur medizinische Physik. 2011;21(1):42-51. DOI:10.1016/j.zemedi.2010.06.007 2011
Hui Khee Looe,Dietrich Harder,Kay C Willborn et al.
Hui Khee Looe et al.
Portal imaging has become an integral part of modern radiotherapy techniques such as IMRT and IGRT. It serves to verify the accuracy of day-to-day patient positioning, a prerequisite for treatment success. However, image blurring attributab...
Monte Carlo simulations to replace film dosimetry in IMRT verification [0.03%]
蒙特卡洛模拟可替代薄膜剂量计用于IMRT验证
Thomas Goetzfried,Mark Rickhey,Marius Treutwein et al.
Thomas Goetzfried et al.
Patient-specific verification of intensity-modulated radiation therapy (IMRT) plans can be done by dosimetric measurements or by independent dose or monitor unit calculations. The aim of this study was the clinical evaluation of IMRT verifi...
[Analysis of image quality and dose calculation accuracy in cone beam CT acquisitions with limited projection data (half scan, half fan) with regard to usability for adaptive radiation therapy treatment planning] [0.03%]
[有关于自适应放射治疗计划使用的半扫描/半扇束投影数据的锥形束CT成像质量及剂量计算精度分析]
Matthias Kowatsch,Peter Winkler,Brigitte Zurl et al.
Matthias Kowatsch et al.
Subject of this study is the question of whether cone beam CT (CBCT) images with reduced projection data are suitable for use in adaptive radiation therapy (ART) treatment planning. For this purpose image quality and dose calculation accura...
Claudia Lenz,Markus Klarhöfer,Klaus Scheffler et al.
Claudia Lenz et al.
Diffusion-weighted magnetic resonance imaging (DWI) provides qualitative and quantitative information about the random motion of water molecules in biological tissues and is able to give functional insight into tissue architecture and patho...
Flattening filter free beams in SBRT and IMRT: dosimetric assessment of peripheral doses [0.03%]
flatttening过滤器自由光束在SBRT和IMRT中的周边剂量的剂量评估研究
Gabriele Kragl,Franziska Baier,Steffen Lutz et al.
Gabriele Kragl et al.
Purpose: Recently, there has been a growing interest in operating medical linear accelerators without a flattening filter. Due to reduced scatter, leaf transmission and radiation head leakage a reduction of out-of-field d...
Comparative Study
Zeitschrift fur medizinische Physik. 2011 May;21(2):91-101. DOI:10.1016/j.zemedi.2010.07.003 2011
Comparison of selective arterial spin labeling using 1D and 2D tagging RF pulses [0.03%]
一维和二维编码射频脉冲选择性动脉自旋标记对比研究
Simon Konstandin,Patrick M Heiler,Johann Scharf et al.
Simon Konstandin et al.
Generic arterial spin labeling (ASL) techniques label all brain feeding arteries. In this work, we used two different selective ASL (SASL) methods to show the perfusion of one single artery. A slice selective inversion of an area including ...
Comparative Study
Zeitschrift fur medizinische Physik. 2011;21(1):26-32. DOI:10.1016/j.zemedi.2010.06.003 2011