Automated identification of abnormal metaphase chromosome cells for the detection of chronic myeloid leukemia using microscopic images.
Karyotyping is an important process to classify chromosomes into standard classes and the results are routinely used by the clinicians to diagnose cancers and genetic diseases. However, visual karyotyping using microscopic images is time-consuming and tedious, which reduces the diagnostic efficiency and accuracy. Although many efforts have been made to develop computerized schemes for automated karyotyping, no schemes can get be performed without substantial human intervention. Instead of developing a method to classify all chromosome classes, we develop an automatic scheme to detect abnormal metaphase cells by identifying a specific class of chromosomes (class 22) and prescreen for suspicious chronic myeloid leukemia (CML). The scheme includes three steps: (1) iteratively segment randomly distributed individual chromosomes, (2) process segmented chromosomes and compute image features to identify the candidates, and (3) apply an adaptive matching template to identify chromosomes of class 22. An image data set of 451 metaphase cells extracted from bone marrow specimens of 30 positive and 30 negative cases for CML is selected to test the scheme's performance. The overall case-based classification accuracy is 93.3% (100% sensitivity and 86.7% specificity). The results demonstrate the feasibility of applying an automated scheme to detect or prescreen the suspicious cancer cases.
Wang
Xingwei
X
University of Pittsburgh, Department of Radiology, Pittsburgh, Pennsylvania 15213, USA. wangx6@upmc.edu
Zheng
Bin
B
Li
Shibo
S
Mulvihill
John J
JJ
Chen
Xiaodong
X
Liu
Hong
H
D001185:Artificial Intelligence; D002869:Chromosome Aberrations; D002877:Chromosomes, Human / Q000235:genetics* / Q000648:ultrastructure*; D006801:Humans; D007089:Image Enhancement / Q000379:methods; D007090:Image Interpretation, Computer-Assisted / Q000379:methods; D007621:Karyotyping / Q000379:methods*; D015464:Leukemia, Myelogenous, Chronic, BCR-ABL Positive; D008677:Metaphase / Q000235:genetics*; D008853:Microscopy / Q000379:methods*; D010363:Pattern Recognition, Automated / Q000379:methods*; D015203:Reproducibility of Results; D012680:Sensitivity and Specificity
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