Computed tomography (CT) is widely used to identify anomalies in brain tissues because their localization is important for diagnosis and therapy planning. Due to the insufficient soft tissue contrast of CT, the division of the brain into anatomical meaningful regions is challenging and is commonly do...
Computed tomography (CT) is widely used to identify anomalies in brain tissues because their localization is important for diagnosis and therapy planning. Due to the insufficient soft tissue contrast of CT, the division of the brain into anatomical meaningful regions is challenging and is commonly do...
文档标签: CT with or without contrast enhancement NuclearScienceTechniques23(2012)305—3re0petectiticlyes:costencemenINGYanHAOJinhuaSONGianhuaCHENiangQIAWenliDepartmentNuclearMedicine,ShanghaiFirstPeopleHospital,ShanghaiJiaoTongUniversity,Shanghai200080,ChinabstractPurposeperformancecontrast—enhancedPEnon—enhancedPE...
CLINICAL HISTORY: SOB, dyspnea, R/O PE, ILD, possible occupational lung disease INDICATIONS: 49 year-old patient with shortness of breath. Possible PE. Possible occupational lung disease. PROCEDURE: Consecutive axial slices were obtained without and with intravenous contrast. Bolus thin slices were ...
Handcrafted and deep learning (DL) radiomics are popular techniques used to develop computed tomography (CT) imaging-based artificial intelligence models for COVID-19 research. However, contrast heterogeneity from real-world datasets may impair model per
Background and Objectives: Patients with acute ischemic stroke (AIS) treated with endovascular thrombectomy (EVT) in the late window (6-24 hours) can be evaluated with CT perfusion (CTP) or with noncontrast CT (NCCT) only. Whether outcomes differ depending on the type of imaging selection is...
See smaller lesions, with better contrast. Hear what the experts say about the accuracy of Biograph Vision. Performance to maximize efficiency Market-leading time of flight and sensitivity2,7mean lower patient exposure and reduced tracer cost.3Learn what the performance of Biograph Vision can do fo...
Compared with contrast-enhanced CT (the primary imaging modality for diagnosing PDAC9), non-contrast CT exposes patients to lower radiation doses and eliminates the risk of adverse reactions to the contrast agents. In addition to abdominal non-contrast CT routinely used in emergency departments and...
CT:CT shows a 5-mm focus of hyperattenuation with surrounding hypoattenuation within the superior right cerebellar hemisphere. Diffuse sulcal and ventricular prominence, compatible with diffuse cerebral volume loss. Scattered geographic regions of rela...
some areas of infection have low contrast with natural areas ;the shape and size of infected areas are multi-scale . We propose a model to address those difficulties. We use a coarse segmentation module to obtain a rough segment result from input images. We employ a refining module to learn...