Endosonography of the anal sphincter: findings in healthy volunteers.

Endosonography of the Anal Canal

Although the initial application of endoluminal ultrasonography was for the evaluation and staging of rectal cancer, it soon became apparent to clinicians that this modality had tremendous potential in the evaluation of benign disease of the anal canal and pelvic floor.1,2 This article will discuss the current role of endosonography of the anal canal, with emphasis on anatomical considerations ...

Rectal and anal endosonography.

Rectal and anal endosonography Conventional ultrasound using an external transducer on the body wall has an important limitation. A balance has to be struck between the better resolution of a high frequency transducer and its focal length. To obtain really good images the transducer has to be as close to the organ of interest as possible. The idea of using an ultrasound transducer inside a body...

Anal endosonography in faecal incontinence.

Effect of Nail Polish on Pulse Oximetry Findings in Healthy Volunteers: A Randomized Clinical Trail

Background and Objectives: Pulse oximetry is the most common technique for monitoring hemoglobin oxygen saturation (SpO2). Different colors and brands of nail polish may cause disturbance in the reading and interpretation of oxygen saturation. The aim of this study was to determine the effect of different colors of nail polish on oxygen saturation measured by pulse oximeter. Methods: Thirty he...

Measurement of anal sphincter muscles: endoanal US, endoanal MR imaging, or phased-array MR imaging? A study with healthy volunteers.

PURPOSE To compare endoanal ultrasonography (US), endoanal magnetic resonance (MR) imaging, and phased-array MR imaging for anal sphincter muscle measurement. MATERIALS AND METHODS Sixty healthy volunteers underwent 1.5-T phased-array MR, endoanal MR, and endoanal US examinations. Sphincter muscle thicknesses were measured. Measurement reliability was analyzed, and correlations among the imag...