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The Ability of Dual-Energy Computed Tomography to Distinguish Normal Bone Marrow From Metastases Using Bone Marrow Color Maps.
Journal of Computer Assisted Tomography 2018 July
OBJECTIVE: The objective of this study was to determine if dual-energy computed-tomography bone marrow color maps can improve sensitivity, specificity, accuracy, and confidence of detection of bone metastases.
METHODS: Institutional review board approved this retrospective review of a consecutive series of cancer patients. Two radiologists first evaluated the fused 120 kV computed tomography images and recorded a number of suspicious lesions, confidence level, and Hounsfield units for each lesion. After a time gap, the studies were randomized for a second review with dual-energy computed-tomography bone marrow color maps.
RESULTS: Eighteen patients and 1105 bones were reviewed. A total of 227 true metastatic lesions were present. With bone marrow color map review, sensitivity increased from 76.2% to 86.8%, for reader 1, and from 80.2% to 92.8%, for reader 2. Specificity and accuracy also increased. Confidence level increased for 12 lesions.
CONCLUSIONS: Dual-energy computed-tomography bone marrow color map analysis of patients with metastatic cancers can improve the sensitivity, specificity, accuracy, and confidence level for the detection of bone metastases.
METHODS: Institutional review board approved this retrospective review of a consecutive series of cancer patients. Two radiologists first evaluated the fused 120 kV computed tomography images and recorded a number of suspicious lesions, confidence level, and Hounsfield units for each lesion. After a time gap, the studies were randomized for a second review with dual-energy computed-tomography bone marrow color maps.
RESULTS: Eighteen patients and 1105 bones were reviewed. A total of 227 true metastatic lesions were present. With bone marrow color map review, sensitivity increased from 76.2% to 86.8%, for reader 1, and from 80.2% to 92.8%, for reader 2. Specificity and accuracy also increased. Confidence level increased for 12 lesions.
CONCLUSIONS: Dual-energy computed-tomography bone marrow color map analysis of patients with metastatic cancers can improve the sensitivity, specificity, accuracy, and confidence level for the detection of bone metastases.
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