CT texture analysis of histologically proven benign and malignant lung lesions

Subba R Digumarthy; Atul M Padole; Roberto Lo Gullo; Ramandeep Singh; Jo-Anne O Shepard; Mannudeep K Kalra

doi:10.1097/MD.0000000000011172

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CT texture analysis of histologically proven benign and malignant lung lesions

Journal article

Open access

Peer reviewed

CT texture analysis of histologically proven benign and malignant lung lesions

Subba R Digumarthy, Atul M Padole, Roberto Lo Gullo, Ramandeep Singh, Jo-Anne O Shepard and Mannudeep K Kalra

Medicine (Baltimore), Vol.97(26), pp.e11172-e11172

06/01/2018

DOI: 10.1097/MD.0000000000011172

PMCID: PMC6039644

PMID: 29952966

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Abstract

The purpose of our study was to determine accuracy of CT texture analysis (CTTA) for differentiating benign from malignant pulmonary nodules, and well-differentiated from poorly differentiated lung cancers, with histology as the standard of reference.In this IRB-approved study, 175 adult patients (average age 66 ± 12 years; age range 27-89 years, male 82: female 93) who underwent a noncontrast chest CT examination prior to CT-guided biopsy of pulmonary nodules were included. There were 57 benign (24 tumors or tumor-like lesions; 33 inflammatory conditions) and 120 malignant (29 well-differentiated adenocarcinomas, 48 poorly differentiated adenocarcinomas, and 43 squamous cell carcinomas) diagnoses on pathology. CTTA was performed on the prebiopsy noncontrast CT images using a commercially available software (TexRAD limited, UK). The CTCA features analyzed included mean HU values, percent positive pixels (PPP), mean value of positive pixels (MPP), standard deviation (SD), normalized SD, skewness, kurtosis, and entropy.The ROC analyses showed that normalized SD [AUC: 0.63, (CI: 0.55-72), P = .003] had moderate accuracy for differentiating between benign and malignant lesions. For differentiating among well-differentiated and poorly differentiated tumors, the ROC analysis showed that except skewness all other parameters were statistically significant The AUC values of other CTTA parameters were: mean (AUC: 0.73-0.76, P = .001- < .0001).CT texture analyses can reliably predict well- and poorly differentiated lung malignancies. However, inflammatory lung lesions with tissue heterogeneity negatively affect the performance of CTTA when it comes to differentiation between benign and malignant pulmonary nodules.

Adult

Aged

Aged, 80 and over

Area Under Curve

Female

Humans

Lung - diagnostic imaging

Lung - pathology

Lung Neoplasms - diagnostic imaging

Male

Middle Aged

ROC Curve

Sensitivity and Specificity

Tomography, X-Ray Computed - methods

Details

Title: Subtitle: CT texture analysis of histologically proven benign and malignant lung lesions
Creators: Subba R Digumarthy - Massachusetts General Hospital
Atul M Padole
Roberto Lo Gullo
Ramandeep Singh
Jo-Anne O Shepard
Mannudeep K Kalra
Resource Type: Journal article
Publication Details: Medicine (Baltimore), Vol.97(26), pp.e11172-e11172
DOI: 10.1097/MD.0000000000011172
PMID: 29952966
PMCID: PMC6039644
NLM abbreviation: Medicine (Baltimore)
ISSN: 0025-7974
eISSN: 1536-5964
Language: English
Date published: 06/01/2018
Academic Unit: Radiology
Record Identifier: 9984697724402771

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