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  2. Ring-enhancing lesion - Wikipedia

    en.wikipedia.org/wiki/Ring-enhancing_lesion

    A ring-enhancing lesion is an abnormal radiologic sign on MRI or CT scans obtained using radiocontrast. On the image, there is an area of decreased density (see radiodensity) surrounded by a bright rim from concentration of the enhancing contrast dye. This enhancement may represent breakdown of the blood-brain barrier and the development of an ...

  3. File:Symptoms of AIDS.svg - Wikipedia

    en.wikipedia.org/wiki/File:Symptoms_of_AIDS.svg

    By this method, body diagrams can be derived by pasting organs into one of the "plain" body images shown below. This method requires a graphics editor that can handle transparent images, in order to avoid white squares around the organs when pasting onto the body image. Pictures of organs are found on the project's main page. These were ...

  4. Physics of magnetic resonance imaging - Wikipedia

    en.wikipedia.org/wiki/Physics_of_magnetic...

    Modern 3 Tesla clinical MRI scanner.. Magnetic resonance imaging (MRI) is a medical imaging technique mostly used in radiology and nuclear medicine in order to investigate the anatomy and physiology of the body, and to detect pathologies including tumors, inflammation, neurological conditions such as stroke, disorders of muscles and joints, and abnormalities in the heart and blood vessels ...

  5. MRI pulse sequence - Wikipedia

    en.wikipedia.org/wiki/MRI_pulse_sequence

    An MRI pulse sequence in magnetic resonance imaging (MRI) is a particular setting of pulse sequences and pulsed field gradients, resulting in a particular image appearance. [ 1 ] A multiparametric MRI is a combination of two or more sequences, and/or including other specialized MRI configurations such as spectroscopy .

  6. Diffusion-weighted magnetic resonance imaging - Wikipedia

    en.wikipedia.org/wiki/Diffusion-weighted...

    MRI can be made sensitive to the motion of molecules. Regular MRI acquisition utilizes the behavior of protons in water to generate contrast between clinically relevant features of a particular subject. The versatile nature of MRI is due to this capability of producing contrast related to the structure of tissues at the microscopic level.

  7. MRI contrast agent - Wikipedia

    en.wikipedia.org/wiki/MRI_contrast_agent

    Effect of contrast agent on images: Defect of the blood–brain barrier after stroke shown in MRI. T 1-weighted images, left image without, right image with contrast medium administration. Gadolinium(III) containing MRI contrast agents (often termed simply "gado" or "gad") are the most commonly used for enhancement of vessels in MR angiography ...

  8. Harris releases medical report, drawing contrast with Trump - AOL

    www.aol.com/news/harris-release-medical-report...

    WASHINGTON (Reuters) -Vice President Kamala Harris, the Democratic presidential nominee, released a letter from her doctor on Saturday that pronounced her in good health and fit for high office ...

  9. Diagnosis of HIV/AIDS - Wikipedia

    en.wikipedia.org/wiki/Diagnosis_of_HIV/AIDS

    The presence of p24 antigen diminishes as the body increases production of antibodies to the p24 protein, making p24 more difficult to detect later. Antigen/antibody combination tests A combination, or 4th generation assay, is designed to detect both the p24 antigen and HIV antibodies in a single test.

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