Search results
Results From The WOW.Com Content Network
Hystero contrast sonography (HyCoSy) is an ultrasound procedure intended to diagnose structural defects of the female reproductive system, such as blockage of the fallopian tubes. It is conducted as an initial transvaginal ultrasound followed by the introduction of a catheter to force an aqueous fluid up the fallopian tube to provide a contrast ...
The contrast agent is taken up by the fallopian tubes. [22] Since HyCoSy is performed using transvaginal ultrasound, it is less invasive than chromopertubation. Using a contrast agent, the ultrasound image can be used to detect whether and how the contrast medium flows through the fallopian tubes.
A meta-analysis revealed 3.6 times greater odds (OR = 3.6) of pregnancy with oil-based contrast compared to no hysterosalpingography. [5] This effect is thought to be due to the flushing action of the contrast into the uterus that causes dislodgement of mucus plug, debris, or opening of mild adhesions in the fallopian tubes. [6]
Hysteroscopy has the benefit of allowing direct visualization of the uterus, thereby avoiding or reducing iatrogenic trauma to delicate reproductive tissue which may result in Asherman's syndrome. Hysteroscopy allows access to the uterotubal junction for entry into the fallopian tube ; this is useful for tubal occlusion procedures for ...
Contrast-enhanced ultrasound (CEUS) is the application of ultrasound contrast medium to traditional medical sonography. Ultrasound contrast agents rely on the different ways in which sound waves are reflected from interfaces between substances. This may be the surface of a small air bubble or a more complex structure.
In optics, chromatic aberration (CA), also called chromatic distortion, color aberration, color fringing, or purple fringing, is a failure of a lens to focus all colors to the same point. [ 1 ] [ 2 ] It is caused by dispersion : the refractive index of the lens elements varies with the wavelength of light .
Main page; Contents; Current events; Random article; About Wikipedia; Contact us; Donate
BCM results from mutations in a single red or red–green hybrid opsin gene, mutations in both the red and the green opsin genes or deletions within the adjacent LCR (locus control region) on the X chromosome. [3] Green cone monochromacy (GCM), also known as M-cone monochromacy, is a condition where the blue and red cones are absent in the ...