Combined reading of contrast enhanced and diffusion weighted magnetic resonance imaging by using a simple sum score
Objective: To improve specificity of breast MRI by integrating Apparent Diffusion Coefficient (ADC) values with contrast enhanced MRI (CE-MRI) using a simple sum score. Methods: Retrospective analysis of a consecutive series of patients referred to breast MRI at 1.5 T for further workup of breast le...
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| Main Authors: | , |
|---|---|
| Format: | Article (Journal) |
| Language: | English |
| Published: |
2016
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| In: |
European radiology
Year: 2015, Volume: 26, Issue: 3, Pages: 884-891 |
| ISSN: | 1432-1084 |
| DOI: | 10.1007/s00330-015-3886-x |
| Online Access: | Verlag, Volltext: https://doi.org/10.1007/s00330-015-3886-x
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| Author Notes: | Anja Baltzer, Matthias Dietzel, Clemens G. Kaiser, Pascal A. Baltzer |
MARC
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| 245 | 1 | 0 | |a Combined reading of contrast enhanced and diffusion weighted magnetic resonance imaging by using a simple sum score |c Anja Baltzer, Matthias Dietzel, Clemens G. Kaiser, Pascal A. Baltzer |
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| 520 | |a Objective: To improve specificity of breast MRI by integrating Apparent Diffusion Coefficient (ADC) values with contrast enhanced MRI (CE-MRI) using a simple sum score. Methods: Retrospective analysis of a consecutive series of patients referred to breast MRI at 1.5 T for further workup of breast lesions. Reading results of CE-MRI were dichotomized into score 1 (suspicious) or 0 (benign). Lesion’s ADC-values (in *10-3 mm2/s) were assigned two different scores: ADC2: likely malignant (score +1, ADC ≤ 1), indeterminate (score 0, ADC >1- ≤ 1.4) and likely benign (score -1, ADC > 1.4) and ADC1: indeterminate (score 0, ADC ≤ 1.4) and likely benign (score -1, ADC > 1.4). Final added CE-MRI and ADC scores >0 were considered suspicious. Reference standard was histology and imaging follow-up of >24 months. Diagnostic parameters were compared using McNemar tests. Results: A total of 150 lesions (73 malignant) were investigated. Reading of CE-MRI showed a sensitivity of 100 % (73/73) and a specificity of 81.8 % (63/77). Additional integration of ADC scores increased specificity (ADC2/ADC1, P = 0.008/0.001) without causing false negative results. Conclusion: Using a simple sum score, ADC-values can be integrated with CE-MRI of the breast, improving specificity. The best approach is using one threshold to exclude cancer. | ||
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| 650 | 4 | |a Contrast enhanced MRI | |
| 650 | 4 | |a Diffusion Weighted Imaging | |
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| 650 | 4 | |a Sensitivity and Specificity | |
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