Deep learning—a form of artificial intelligence—was able to detect malignant lung nodules on low-dose chest computed tomography (LDCT) scans with a performance meeting or exceeding that of expert radiologists, reports ...
May 20, 2019
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Imperial researchers have used artificial intelligence (AI) to extract information about the chemical makeup of lung tumors from medical scans. For the first time, they have demonstrated how combining medical imaging with ...
Feb 21, 2024
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A multinational study of almost one million individuals confirms a strong and clear association between exposure to radiation from CT scans in young people and an increased risk of blood cancers. This is the main conclusion ...
Nov 9, 2023
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Doctors at Guthrie Healthcare System, in Sayre, Pennsylvania, have documented a case of a teenage boy who swallowed 21 disc magnets. In their paper published in BMJ Case Reports, the medical team describes how they found ...
Current national guidelines that rely on age and smoking exposure to recommend people for lung cancer screening are disproportionally failing minority populations including African Americans, according to a new study led ...
Oct 27, 2023
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Researchers from Dana-Farber Cancer Institute have found a way to use artificial intelligence (AI) to diagnose muscle wasting, called sarcopenia, in patients with head and neck cancer. AI provides a fast, automated, and accurate ...
Aug 10, 2023
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CT scans are better at predicting a middle-aged person's risk for a heart disease, such as a heart attack, than genetics, reports a new Northwestern Medicine study published May 23 in JAMA.
May 23, 2023
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For patients with human papilloma virus (HPV)-associated oropharynx cancer, assessing the presence of cancer cells beyond the lymph nodes, or extranodal extension (ENE), is critical in determining proper treatment. However, ...
Apr 21, 2023
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Researchers from the University of Ottawa and The Ottawa Hospital have found marijuana smokers have a higher rate of emphysema and airway diseases compared to cigarette smokers.
Nov 15, 2022
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Immune checkpoint blockade (ICB) inhibitors have transformed the treatment of cancer and have become the frontline therapy for a broad range of malignancies. It's because they work better than the previous standard of care.
Mar 14, 2022
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Computed tomography (CT) is a medical imaging method employing tomography. Digital geometry processing is used to generate a three-dimensional image of the inside of an object from a large series of two-dimensional X-ray images taken around a single axis of rotation. The word "tomography" is derived from the Greek tomos (slice) and graphein (to write). Computed tomography was originally known as the "EMI scan" as it was developed at a research branch of EMI, a company best known today for its music and recording business. It was later known as computed axial tomography (CAT or CT scan) and body section röntgenography.
CT produces a volume of data which can be manipulated, through a process known as "windowing", in order to demonstrate various bodily structures based on their ability to block the X-ray/Röntgen beam. Although historically the images generated were in the axial or transverse plane, orthogonal to the long axis of the body, modern scanners allow this volume of data to be reformatted in various planes or even as volumetric (3D) representations of structures. Although most common in medicine, CT is also used in other fields, such as nondestructive materials testing. Another example is the DigiMorph project at the University of Texas at Austin which uses a CT scanner to study biological and paleontological specimens.
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