Achim Langenbucher,Sibylle Scholtz
Achim Langenbucher
Objective assessment of accommodation with an accommodative intraocular lens: Development of methodology and case report [0.03%]
一种评估调节功能的新方法及植入式调变焦人工晶状体的临床观察报告
Timo Eppig,Violetta Müller,Manuel Seer et al.
Timo Eppig et al.
Purpose: To determine the objectively measurable amplitude of accommodation after implantation of an accommodating intraocular lens (IOL). Methods: ...
Julian Niedling,Ndimofor Chofor,Frank Hensley et al.
Julian Niedling et al.
In-vivo dosimetry is associated with high measurement uncertainties, partly due to deviations in detector response under clinical compared to calibration conditions, especially for IMRT/VMAT, stereotactic radiosurgery, and total body irradi...
First ex-vivo positronium imaging of tissues with modular J-PET scanner using 44Sc radionuclide [0.03%]
使用44Sc放射性核素对组织进行模块化J-PET扫描仪的体外正电子原子成像
Karol Kubat,Manish Das,Sushil Sharma et al.
Karol Kubat et al.
This study presents the first ex-vivo positronium imaging of human tissues using the modular J-PET scanner with the 44Sc radionuclide. The 44Sc isotope was produced via the 44Ca(p, n)44Sc nuclear reaction and used to perform positronium ima...
Multi-angle beam range measurement framework for carbon-ion radiotherapy using a commercial multi-layer ionization chamber [0.03%]
基于商业多层电离室的碳离子放疗多角度束流测距框架研究
Soorim Han,YongCheol Kwon,Taegeon Oh et al.
Soorim Han et al.
Accurate beam range verification is critical in carbon-ion radiotherapy, where the sharp Bragg peak and complex material-dependent nuclear interactions pose greater measurement challenges compared to proton therapy; however, conventional wa...
Local diagnostic reference levels for routine chest X-ray examinations: first pilot study in Kazakhstan [0.03%]
哈萨克斯坦常规胸部X线检查的本地诊断参考水平：首次试点研究
Moldir Aumalikova,Botagoz Nurseitova,Yerlan Kashkinbayev et al.
Moldir Aumalikova et al.
X-ray imaging is one of the most frequently used diagnostic tools in Kazakhstan and globally. Despite its clinical benefits, it involves exposure to ionizing radiation, requiring dose optimization. The International Atomic Energy Agency (IA...
Initial validation and commissioning experience of Phoenix Plan treatment planning system for scanned carbon ion beams delivered by Heavy Ion Medical Machine [0.03%]
基于重离子医疗装置的Phoenix计划系统的初步验证及等中心束流治疗经验
Yunzhou Xia,Youfang Lai,Kai Wang et al.
Yunzhou Xia et al.
Purpose: We present the commissioning and initial validation of Phoenix Plan, a GPU-accelerated treatment planning system (TPS) developed for raster-scanned carbon ion therapy delivered by the Heavy Ion Medical Machine (H...
Simulation of B0 magnetic field conditions in the human heart for improved diagnostic MRI [0.03%]
用于改善诊断性磁共振成像的人心B0磁场条件的模拟
Yun Shang,Sebastian Theilenberg,Michelle Castillo et al.
Yun Shang et al.
Background: Cardiac balanced steady-state free precession (bSSFP) MRI suffers from dark band artifacts due to severe B0 inhomogeneity induced by air-tissue interfaces in the human body. Those artifacts remain uncontrollab...
Evaluation of a quantitative method for measuring the spatial resolution of a gamma camera using a bar phantom [0.03%]
采用线模测量γ相机空间分辨率的定量方法的评价
J Maack,C Schütze
J Maack
The method developed by Hander et al. (1997) [1] enables a quantitative determination of spatial resolution by analysing planar images of a lead bar phantom. The method is based on the determination of the modulation transfer function (MTF)...
MRI simulation and reconstruction framework for arbitrarily-oriented encoding and transmit/receive magnetic vector fields [0.03%]
任意取向编码和发射/接收磁矢量场的MRI模拟与重建框架
Fabian Bschorr,Thomas Hüfken,Tobias Lobmeyer et al.
Fabian Bschorr et al.
Conventional MRI is relying on the assumption of the magnetic field B0 being homogeneous in direction and amplitude. However, with the growing interest in portable, affordable point-of-care MRI systems, these assumptions do not necessarily ...