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  2. Exophthalmometer - Wikipedia

    en.wikipedia.org/wiki/Exophthalmometer

    In children and teenagers mean exophthalmometric measurements increase with age: Less than 4 years old (13.2 mm), 5–8 years old (14.4 mm), 9–12 years old (15.2 mm) and 13–17 years old (16.2 mm). [4] Axial Length of the eye affects exophthalmometer reading. Pseudoproptosis may be seen in severe myopia. [5]

  3. Instruments used in radiology - Wikipedia

    en.wikipedia.org/wiki/Instruments_used_in_radiology

    Magnetic resonance imaging alias Nuclear magnetic resonance : high strength (0.15 to 1.5 teslas) [4] are used to excite protons that produce the record results (like CT scan). It can show particular tissues more clearly than CT.; [4] video link: Linear accelerator: used in radiotherapy for cancer: Functional magnetic resonance imaging (fMRI ...

  4. X-ray detector - Wikipedia

    en.wikipedia.org/wiki/X-ray_detector

    Fish bone pierced in the upper esophagus. Right image without contrast medium, left image during swallowing with contrast medium. To obtain an image with any type of image detector the part of the patient to be X-rayed is placed between the X-ray source and the image receptor to produce a shadow of the internal structure of that particular part of the body.

  5. Exophthalmos - Wikipedia

    en.wikipedia.org/wiki/Exophthalmos

    Exophthalmos (also called exophthalmus, exophthalmia, proptosis, or exorbitism) is a bulging of the eye anteriorly out of the orbit. Exophthalmos can be either bilateral (as is often seen in Graves' disease) or unilateral (as is often seen in an orbital tumor). Complete or partial dislocation from the orbit is also possible from trauma or ...

  6. FDA Center for Devices and Radiological Health - Wikipedia

    en.wikipedia.org/wiki/FDA_Center_for_Devices_and...

    This advisory committee has held 7 meetings since 2017 and has provided recommendations on complex issues, including patient engagement in clinical trial design and conduct, use of patient-generated health data in post-market surveillance, communications about medical devices, such as communications regarding cybersecurity vulnerabilities, AR ...

  7. Medical optical imaging - Wikipedia

    en.wikipedia.org/wiki/Medical_optical_imaging

    Medical optical imaging is the use of light as an investigational imaging technique for medical applications, pioneered by American Physical Chemist Britton Chance. Examples include optical microscopy , spectroscopy , endoscopy , scanning laser ophthalmoscopy , laser Doppler imaging , optical coherence tomography , and transdermal optical imaging .

  8. List of measuring instruments - Wikipedia

    en.wikipedia.org/wiki/List_of_measuring_instruments

    Many measurement devices outside this section may be used or at least become part of an identification process. For identification and content concerning chemical substances, see also Analytical chemistry, List of chemical analysis methods, and List of materials analysis methods.

  9. Graves' ophthalmopathy - Wikipedia

    en.wikipedia.org/wiki/Graves'_ophthalmopathy

    In mild disease, patients present with eyelid retraction. In fact, upper eyelid retraction is the most common ocular sign of Graves' orbitopathy. This finding is associated with lid lag on infraduction (Von Graefe's sign), eye globe lag on supraduction (Kocher's sign), a widened palpebral fissure during fixation (Dalrymple's sign) and an incapacity of closing the eyelids completely ...

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