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50%
of infertile couples are
affected by male factor infertility. The key to predicting
male factor infertility is to obtain an accurate estimate
of the number and percentage of sperm that are properly
functioning. Progressive, rapid linear sperm movement
is currently the best predictor of sperm function.
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The Center
for Assisted Reproduction uses a cutting edge
computer system to help with
these measurements. Computer Assisted Semen Analysis (CASA)
enables us to get a more accurate analysis by limiting the number
of variables that exist with the manual analysis more commonly
used by commercial laboratories.
CASA is used
to study recorded video images of sperm through a powerful
microscope. The images are digitalized and analyzed by a high-speed
computer system (up to 60 frames per second) so that motility
of individual sperm (and sperm populations) can be analyzed.
Most commercial laboratories still use the visual, subjective
estimation of motility. That method is less reproducible and
allows for more error than the highly advanced CASA system.
The CASA system
is so precise that it enables our Andrologists to study
other characteristics of sperm motion, such as path velocity,
linearity, and amplitude of lateral head displacement.
The CASA diagnostic test
is an important first step in appropriately treating male
factor infertility. The CASA system affords us with the most
accurate and reliable laboratory results available. It is
one of the most advanced diagnostic tools for male infertility
today.
Contact CAR for more information regarding Computer Assisted Semen Analysis and other fertility tests if you live in or around Dallas and Fort Worth, Texas.
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