Publications by authors named "N Haag"
Article Synopsis
- The study evaluates how the quality of computed tomography angiography (CTA) images, particularly those from Photon Counting Computed Tomography (PCCT), impacts the effectiveness of a deep learning (DL) algorithm in detecting large vessel occlusions (LVO) during acute ischemic stroke diagnostics.
- 443 cases were analyzed, including both positive and negative occlusion cases, and the DL software prototype's performance was assessed with sensitivity and specificity metrics.
- Results showed that the DL algorithm performed better with PCCT images compared to conventional CT images, achieving higher sensitivity for all occlusions and a marked improvement in identifying M2 occlusions, suggesting that improved image quality enhances detection capabilities but further research is necessary.
Objectives: Coronary CT angiography (CCTA) is becoming increasingly important in the workup of coronary artery disease. Imaging of stents and in-stent stenoses remains a challenge. This work investigates the assessability of in-stent stenoses in photon counting CT (PCCT) using ultra-high-resolution (UHR) imaging and optimized reconstruction kernels.
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- NaV1.8 and NaV1.9 are sodium channels crucial for pain signaling in sensory neurons, affecting how pain stimuli are processed and transmitted.
- Mutations in the genes encoding these channels (SCN10A and SCN11A) can lead to various pain-related disorders, including small fiber neuropathy and congenital insensitivity to pain.
- Researchers created double knockout mice to study the effects of losing both sodium channels, finding moderate pain behavior impairment and valuable insights for exploring human pain-related genetic variants.
Purpose: To evaluate gyroscope-assisted CT-guided needle puncture (GAP) compared to free hand puncture (FHP) in a phantom.
Material And Methods: A simple, low-cost gyroscope was equipped with a magnetic rail to attach it to common puncture needles. 18 radiologists with different levels of training and experience in CT-guided punctures first punctured three targets in free hand technique in a special biopsy phantom with different difficulty levels of the puncture path (T1: not angulated, needle path 7.