Quantifying spatial and dynamic lung abnormalities with 3D PREFUL FLORET UTE imaging: A feasibility study.

Purpose: Pulmonary MRI faces challenges due to low proton density, rapid transverse magnetization decay, and cardiac and respiratory motion. The fermat-looped orthogonally encoded trajectories (FLORET) sequence addresses these issues with high sampling efficiency, strong signal, and motion robustness, but has not yet been applied to phase-resolved functional lung (PREFUL) MRI-a contrast-free method for assessing pulmonary ventilation during free breathing. This study aims to develop a reconstruction pipeline for FLORET UTE, enhancing spatial resolution for three-dimensional (3D) PREFUL ventilation analysis.

[Current guidelines for chronic coronary syndrome : Role of computed tomography-coronary angiography and pretest probability for coronary artery disease].

Due to its high sensitivity and high negative predictive value, computed tomography angiography of the coronary arteries (CCTA) has proven to be particularly useful for ruling out obstructive coronary artery disease (CAD) in cases of suspected chronic coronary syndrome (CCS), which is why CCTA will also be included in the care of patients with statutory health insurance in Germany according to the G-BA decision of January 24, 2024. The value of CCTA is clearly confirmed in the current guidelines of the European Society of Cardiology (ESC) and the national care guideline from August 2024. However, good results from CCTA can only be achieved-in addition to appropriate qualifications of those performing the test and the necessary technical requirements-if the right patients are included, namely those with a low intermediate pretest probability for the presence of obstructive CAD.

Temperature Simulation of an Ablation Needle for the Prediction of Tissue Necrosis during Liver Ablation.

Microwave ablation (MWA) is the leading therapy method for treating patients with liver cancer. MWA simulation is used to further improve the therapy and to help develop new devices. A water-cooled ablation needle was reconstructed.