Automated Bone Marrow Analysis with CD4000
Author Information
Author(s): Ryousuke Yamamura, Takahisa Yamane, Masayuki Hino, Kensuke Ohta, Ki-Ryang Koh, Izumi Tsuda, Takayuki Takubo, Noriyuki Tatsumi
Primary Institution: Osaka City University Medical School
Hypothesis
Can the CD4000 automated haematology analyser accurately analyze bone marrow aspirates?
Conclusion
The CD4000 in resistant RBC mode provides more accurate analysis of bone marrow aspirates compared to the normal mode.
Supporting Evidence
- The CD4000 showed significant correlations with microscopic methods for total nucleated cell counts and various cell types.
- The resistant RBC mode provided results that approximated those obtained by microscopy.
- The normal mode of the CD4000 tended to underestimate erythroblast counts.
- Automated measurements in the resistant mode were more accurate for lymphocytes and erythroblasts compared to the normal mode.
- The study involved 98 patients with clean bone marrows free of abnormal cells.
Takeaway
This study shows that a machine can help doctors count blood cells in bone marrow samples more accurately and quickly than looking at them under a microscope.
Methodology
The study compared automated analysis of bone marrow aspirates using the CD4000 with traditional microscopic methods.
Potential Biases
There were biases in the average percentages of erythroblasts and lymphocytes between the two modes of the CD4000.
Limitations
The normal mode of the CD4000 tended to underestimate erythroblast counts compared to the microscopic method.
Participant Demographics
Patients requiring bone marrow aspiration with no signs of dysplasia.
Statistical Information
P-Value
p<0.0001
Statistical Significance
p<0.01
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