Related Experiment Videos
Metacarpophalangeal pattern profile analysis in Noonan syndrome
M G Butler1, R Kumar, M F Davis
1Children's Mercy Hospital, Kansas City, Missouri, USA. mgbtler@cmh.edu
American Journal of Medical Genetics
|May 8, 2000
Summary
Metacarpophalangeal pattern (MCPP) analysis reveals distinct hand bone abnormalities in individuals with Noonan syndrome. This anthropometric technique shows potential for diagnosing Noonan syndrome, achieving 93% accuracy in distinguishing affected individuals from controls.
Area of Science:
- Medical imaging and diagnostics
- Anthropometry
- Genetics
Background:
- Noonan syndrome is a genetic disorder with variable physical features.
- Accurate diagnostic tools are crucial for early intervention and management.
- Metacarpophalangeal pattern (MCPP) analysis quantifies hand skeletal abnormalities.
Purpose of the Study:
- To assess the utility of MCPP analysis in identifying skeletal abnormalities in Noonan syndrome.
- To determine if MCPP analysis can differentiate individuals with Noonan syndrome from healthy controls.
Main Methods:
- MCPP analysis was performed on 15 individuals with Noonan syndrome.
- Statistical analyses included Pearsonian correlation and stepwise discriminant analysis.
- Comparison was made with a control group of 41 healthy individuals.
Main Results:
- Individuals with Noonan syndrome exhibited abnormal MCPP variables (average Z score = -2.1) and hand pattern variability index.
- Sixty percent of subjects with Noonan syndrome showed homogeneous hand patterns.
- Discriminant analysis using metacarpal 1 and middle phalanx 3 achieved 93% correct classification.
Conclusions:
- MCPP analysis effectively quantifies hand skeletal abnormalities in Noonan syndrome.
- The technique demonstrates high accuracy in differentiating Noonan syndrome from healthy individuals.
- MCPP analysis shows promise as a diagnostic screening tool for Noonan syndrome.