Avoid vigorous exercise within 24 hours before examination, and do not excessively speak or swallow within 10 minutes before injection of contrast agent, especially in patients with head and neck tumors, as ingestion of laryngeal muscles may interfere ...
Global Burden of Disease Cancer Collaboration.Global,regional,and national cancer incidence,mortality,years of life lost,years lived with disability,and disability-adjusted life-years for 29 cancer groups,1990 to 2017:a systematic analysis for the global ...
Results: Ninety-five studies (98.9% observational) were included in qualitative synthesis, 70 were suitable for meta-analysis including 60 SARS-CoV-2 studies with a median follow-up of 3 months. In SARS-CoV-2, the overall estimated proportion of inflammatory sequelae was 50% during follow-up ...
Results: Ninety-five studies (98.9% observational) were included in qualitative synthesis, 70 were suitable for meta-analysis including 60 SARS-CoV-2 studies with a median follow-up of 3 months. In SARS-CoV-2, the overall estimated proportion of inflammatory sequelae was 50% during follow-up ...
that include the lungs, heart, and surrounding bones. This method gives precise images that help to determine the presence and extent of injury. Chest CT scanning with contrast gives an in-depth view of inside the chest. This multiple-angled X-ray technique takes many sharp images of the ...
(b) Axial contrast-enhanced CT scan shows that part of the mass encases and occupies the right lower lobe bronchi, causing partial atelectasis. At diagnostic t 45、horacotomy, sarcoidosis with tracheobronchial and pulmonary involvement was found.开胸活检示,支气管及肺实质受累 Sarcoidosis is a ...
Flow sensitive - examines the flow of body fluids but without using contrast agents. This method examines if everything is okay with the cerebrospinal fluid flow and blood flow through the vessels. MRI is mostly used for neuroimaging (NMRI), musculoskeletal, gastrointestinal and cardiovascular syste...
synthetic skull / spine / brain_cerebrum(40) / mesencephalon(40) / cerebellum(40) / cerebral ventricles(10) / eye balls(20) / arteries with contrast medium(left half only)(250) Trunk: spine / clavicle / ribs / sternum / scapulae / lungs(-1000) / pulmonary vessels(8) / trachea(wall:...
Functional Imaging of the Lungs with Gas Agents This review focuses on the state-of-the-art of the three major classes of gas contrast agents used in magnetic resonance imaging (MRI) – hyperpolar... Stanley J. Kruger,Scott K. Nagle,Marcus J. Couch,... - 《Other》 被引量: 14发表: ...
The segmentation process starts with a manual initialisation of 2D contours on a few representative slices of the analysed volume. Next, the starting regions for the active surface are generated according to the probability maps of texture features. The active surface is then evolved to give the ...