Evidence map›Paper›PMID 23579418›Full record

ArticleEuropean radiology2013

A simple and robust classification tree for differentiation between benign and malignant lesions in MR-mammography.

Pascal A T Baltzer, Matthias Dietzel, Werner A Kaiser

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Article in European radiology, 2013. The graph could read no effect estimate from its abstract, so it casts no vote on the map. Cited by 43 papers, 2 of them syntheses that pooled it.

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43citing papers in PubMed, 2 pooled it
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43 citing papers in PubMed, 2 syntheses or guidelines pooled it.

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5 · Who and what money

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3 authors.

Pascal A T BaltzerDepartment of Radiology, Medical University Vienna, Währinger Gürtel 18-20, 1090, Vienna, Austria. pascal.baltzer@meduniwien.ac.at
Matthias Dietzel
Werner A Kaiser

Funding

No grant is acknowledged in the PubMed record.

6 · The paper itself

Abstract

objectivesIn the face of multiple available diagnostic criteria in MR-mammography (MRM), a practical algorithm for lesion classification is needed. Such an algorithm should be as simple as possible and include only important independent lesion features to differentiate benign from malignant lesions. This investigation aimed to develop a simple classification tree for differential diagnosis in MRM.

methodsA total of 1,084 lesions in standardised MRM with subsequent histological verification (648 malignant, 436 benign) were investigated. Seventeen lesion criteria were assessed by 2 readers in consensus. Classification analysis was performed using the chi-squared automatic interaction detection (CHAID) method. Results include the probability for malignancy for every descriptor combination in the classification tree.

resultsA classification tree incorporating 5 lesion descriptors with a depth of 3 ramifications (1, root sign; 2, delayed enhancement pattern; 3, border, internal enhancement and oedema) was calculated. Of all 1,084 lesions, 262 (40.4 %) and 106 (24.3 %) could be classified as malignant and benign with an accuracy above 95 %, respectively. Overall diagnostic accuracy was 88.4 %.

conclusionsThe classification algorithm reduced the number of categorical descriptors from 17 to 5 (29.4 %), resulting in a high classification accuracy. More than one third of all lesions could be classified with accuracy above 95 %. KEY POINTS: • A practical algorithm has been developed to classify lesions found in MR-mammography. • A simple decision tree consisting of five criteria reaches high accuracy of 88.4 %. • Unique to this approach, each classification is associated with a diagnostic certainty. • Diagnostic certainty of greater than 95 % is achieved in 34 % of all cases.

Indexed as

Decision TreesAdultAgedAlgorithmsBreast NeoplasmsContrast MediaDiagnosis, DifferentialFemaleGadolinium DTPAHumansImage Processing, Computer-AssistedMagnetic Resonance ImagingMammographyMiddle AgedMultivariate AnalysisProbabilityContrast MediaGadolinium DTPA

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Read under generation 80e0d062 · epoch 390. Bibliography from PubMed, PubMed Central and OpenAlex; grants from NIH RePORTER; trial links from ClinicalTrials.gov; estimates, votes and beliefs from the OpenQuestion graph.