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Biomedical subjects

L F Rogers

Publications and source records attributed to L F Rogers.

At least 145 records · Page 8Linked to original sources

Dose reduction in mammography.

Two mammographic imaging systems (Xerox and Kodak Min-R) were evaluated. Three hundred consecutive mammographic examinations were performed utilizing both imaging systems. Results of these studies indicated equivalency of image detail at identical source-to-image receptor distance (SID). Patient exposure as measured by the thermoluminescent dose meter for Kodak Min-R system was approximately 25% that of Xeromammography system. Due to reduced power requirement, it is possible to increase the SID when Min-R system is employed for imaging. Improved geometric arrangement provided superior diagnostic images in 5.5% of 200 comparison cases.

Female↗

The ultrasonographic characterization of tendons.

Ultrasonography has not been utilized in the diagnosis of musculoskeletal disorders. However, the superficial location of tendons and ligaments lend themselves to evaluation by this modality. The ultrasonographic characteristics of the normal Achilles tendon are described in both the rabbit and man. The characteristic ultrasonographic findings after injury to the Achilles tendon are also determined. This imaging technique provides a sharp definition of the tendon and surrounding structures and easily demonstrates abnormalities. The superficially located quadriceps tendon is also well visualized by ultrasound and representative examples are shown. Ultrasound should be considered as another useful method for evaluation of these superficial musculoskeletal structures.

Achilles Tendon↗

CT evaluation of adult epiglottitis.

Epiglottitis, a rapidly progressive, potentially lethal, cellulitis involving the epiglottis and larynx, is a medical emergency with the rapid onset of airway compromise. Diagnosis is established by lateral neck radiography and visualization of the inflamed epiglottis and supraglottic tissues by laryngoscopy. The case presented here demonstrates the CT features of acute adult epiglottitis.

Acute Disease↗