Indications that correlated highly with abnormal scans were altered mental state (43.7%), focal weakness (36.7%), mild head injury (21.2%) and confusion (18.5%). Headache, transient ischaemic attack and seizure had low correlations with abnormal scans.Conclusion: The results of this study ...
The purpose of this study was to determine the yield of acutely abnormal findings on head CT scans in patients presenting to the emergency department with dizziness, near-syncope, or syncope and to determine the clinical factors that potentially predicted acutely abnormal head CT findings and ...
Automatic segmentation of organs-at-risk in radiotherapy planning computed tomography (CT) scans using convolutional neural networks (CNNs) is an active research area. Very large datasets are usually required to train such CNN models. In radiotherapy, large, high-quality datasets are scarce and ...
Previous scans (if available) for comparison The appearance of tissues on a CT scan is described in terms of ‘density’. Darker structures are ‘hypodense or low density’; brighter structures are ‘hyperdense or high density’. Blood Can Be Very Bad is a mnemonic that can be used when ...
To our knowledge, our study is the first to describe the development of a system that separately identifies critical abnormalities on head CT scans. 首次描述了一个系统的开发,该系统可以单独识别头部 CT 扫描的严重异常。 Approach First, a natural language processing (NLP) algorithm was used to detec...
The results support the trend of more careful indications for cranial computed tomography scans for children with minor head trauma. 展开 关键词: Computed Tomography Minor head trauma Pediatric CT Scan Radiology DOI: 10.6061/clinics/2016(10)09 被引量: 2 ...
The researchers interpret the findings to indicate overuse of head CT for majority children, rather than underuse for minority children. Studies have found that risks for brain cancer and leukemia increase with number of CT scans before age 15 years. ...
Importance: Non-contrast head CT scan is the current standard for initial imaging of patients with head trauma or stroke symptoms. Objective: To develop and validate a set of deep learning algorithms for automated detection of following key findings from non-contrast head CT scans: intracranial hem...
This well-organized, easy to use atlas comprised of CT scan images of various intracranial emergencies serve as a teaching tool as well as a valuable reference book for the emergency department physician. Subtle findings that can be missed by non-radiologists are emphasized. There are nine abundan...
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