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Updated: Dec 11, 2025
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FISH for Pre-implantation Genetic Diagnosis
Published on: February 23, 2011
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[Expert consensus on prenatal fluorescence in situ hybridization]
1Prenatal Diagnosis Center, the Affiliated Hospital of Qingdao University, Shandong 266000, China.
Summary
Fluorescence in situ hybridization (FISH) offers a faster, more efficient alternative to traditional G-banding karyotype analysis for prenatal diagnosis of common chromosomal aneuploidies.
Area of Science:
- Genetics
- Molecular Biology
- Prenatal Diagnostics
Background:
- Non-invasive prenatal testing has limitations.
- G-banding karyotype analysis, the gold standard, is time-consuming and labor-intensive.
- There is a need for efficient prenatal diagnostic methods.
Purpose of the Study:
- To standardize prenatal fluorescence in situ hybridization (FISH) procedures.
- To enhance laboratory quality management for prenatal FISH assays.
- To address limitations of current prenatal diagnostic methods.
Main Methods:
- Utilizing fluorescence in situ hybridization (FISH) for detecting aneuploidies.
- FISH does not require cell culture and provides non-radioactive signals.
- FISH efficiently diagnoses aneuploidies of chromosomes 13, 18, 21, X, and Y.
Main Results:
- FISH offers a shorter turnover time compared to karyotype analysis.
- FISH can overcome issues of insufficient testing capacity and long diagnosis periods.
- FISH provides efficient detection of common aneuploidies.
Conclusions:
- Prenatal FISH is an efficient diagnostic tool for common aneuploidies.
- Standardization of FISH procedures is crucial for laboratory quality.
- This consensus aims to improve prenatal diagnosis through standardized FISH assays.
