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Service and Support Blog



Motility and Morphology Quality Control on the SQA-V Automated Semen Analyzer

Thursday, December 01, 2011

DOWNLOAD SQA-V Motility_Morphology Technical Bulletin

DOWNLOAD SQA-V Motility_Morphology Testing Instructions

DOWNLOAD SQA-V Motility_Morphology Data Entry Spreadsheet

 

OVERVIEW FROM INSTRUCTIONS DOCUMENT ABOVE: It is recommended that the facility run two (2) live human semen samples and one (1) negative control QC sample in replicates of five (5) to validate the Intra-Assay Precision & Sensitivity (CV %) of the SQA-V Gold system Twice per year. This is to show Motility/Morphology Quality Control and user proficiency. Data collected should be entered in the Data Entry Spreadsheet provided by MES.  The Data Entry Document can be downloaded HERE. The document can also be e-mailed to the facility by MES upon request (service@mes-llc.com).  Upon completion, the user may e-mail the document back to MES for verification.


INSTRUCTIONS:

 

1. Collect two patient samples.

 

2. One sample should be a high concentration sample (greater than 50 Million per ML.) and one should be medium to low (less than 50 Million per ML.)

 

3. Both samples should have Motility greater than 30% and be as FRESH as possible for sample stability.

 

4. If there is no high concentration sample available, one can be made by combining two (or more) samples, centrifuging, and decanting the necessary percentage of seminal plasma.

 

5. Run five (5) replicates of each fresh semen sample as “Fresh Samples” from the Test New Patient section of the main menu (reference SQA-V User Guide page 13 for assistance). Do not discharge and refill the capillary between tests; re-run the same aliquot in the same capillary. The Negative Control sample should be run from the “Control Section” (Negative Control option).

6. Make sure to print out test results after each test (NOTE: If setup to do so, your instrument will print out all results automatically).

7. Import the test results to V-Sperm. Make sure each test is transferred over as this will keep a backup of all test results on file at the facility.

8. After each test, choose the “Retest Patient” option from the main menu to speed through put. NOTE: For sample stability, the five (5) replicates should be run as quickly as possible and continuously. Time is of the essence for best results!

9. Enter all data in the “Data Entry Spreadsheet” and return e-mail to MES (service@mes-llc.com) for verification.

NOTE: Updated service and support documents as well as current technical bulletins can be found at www.mes-global.com. Please check the site periodically for current protocols.


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Understanding Morphology on the SQA-V Gold

Saturday, September 03, 2011
The SQA-V grades “Normal Morphology” according to WHO 3rd, 4th, or 5th edition criteria. It does so by tracking the normal and abnormal motion patterns of the sperm cells in relation to the overall sample population (10,000+ cells analyzed vs. 200~400 manually). The SQA-V processes the differences in sperm motion patterns and correlate them to morphological defects via electro-optic infrared analysis.  Example: A man walking with a broken leg creates abnormal motion based on his abnormal morphology. His walking “pattern” can be abnormal even if he is moving “quickly”. The system cannot necessarily tell if it is a broken leg or another defect like a broken back – but the signals generated do show a problem. For this reason, the SQA-V only reports Normal vs. Abnormal as opposed to a full Morphology breakdown. The system includes a 500x visualization system that allows any operator to verify any result at any time. Used this way, the machine has been validated and certified all over the world and is in routine use at some of the top labs in America and beyond.

Although this is a non-standard approach to qualifying morphology, the correlation between abnormal motility and abnormal morphology is well documented (please see THIS DOCUMENT for references). MES dove deep into the causes of this relationship and have fine-tuned our morphology algorithm to include all relevant data to deliver the most accurate result possible during a routine semen analysis. And remember – ANY operator can run a sample on the SQA-V whereas it takes considerable expertise to perform a detailed manual morphology estimation.

Please check out THIS ARTICLE published in Fertility & Sterility comparing the SQA’s morphology assessment to that of two experienced manual operators – you can also find many additional studies HERE.  This study (and many like it) showcase the extreme variability associated with manual estimation. The typical aliquot analyzed manually (400 cells) represents less than .00001% of the total ejaculate and is subject to extreme subjective interpretation. To compound the problem there are many different “standards” that the tech can use to estimate the morphology. When all is said and done you are flipping a coin trying to achieve an accurate manual morphology count (check out the CAP manual morphology results to see the extreme variability). Unlike the manual method, the SQA-V delivers an OBJECTIVE and reliable normal vs. abnormal screening. When you combined the morphology result with the 15 additional reported parameters the system delivers a detailed report that quantifies sperm quality accurately, precisely, and VERY quickly.

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