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Thermal distribution analysis of three-dimensional tumor-embedded breast models with different breast density compositions.

Abstract：

:Breast cancer is the most common cancer among women globally, and the number of young women diagnosed with this disease is gradually increasing over the years. Mammography is the current gold-standard technique although it is known to be less sensitive in detecting tumors in woman with dense breast tissue. Detecting an early-stage tumor in young women is very crucial for better survival chance and treatment. The thermography technique has the capability to provide an additional functional information on physiological changes to mammography by describing thermal and vascular properties of the tissues. Studies on breast thermography have been carried out to improve the accuracy level of the thermography technique in various perspectives. However, the limitation of gathering women affected by cancer in different age groups had necessitated this comprehensive study which is aimed to investigate the effect of different density levels on the surface temperature distribution profile of the breast models. These models, namely extremely dense (ED), heterogeneously dense (HD), scattered fibroglandular (SF), and predominantly fatty (PF), with embedded tumors were developed using the finite element method. A conventional Pennes' bioheat model was used to perform the numerical simulation on different case studies, and the results obtained were then compared using a hypothesis statistical analysis method to the reference breast model developed previously. The results obtained show that ED, SF, and PF breast models had significant mean differences in surface temperature profile with a p value <0.025, while HD breast model data pair agreed with the null hypothesis formulated due to the comparable tissue composition percentage to the reference model. The findings suggested that various breast density levels should be considered as a contributing factor to the surface thermal distribution profile alteration in both breast cancer detection and analysis when using the thermography technique.

journal_name

Med Biol Eng Comput

journal_title

Medical & biological engineering & computing

authors

Wahab AA,Salim MI,Ahamat MA,Manaf NA,Yunus J,Lai KW

doi

10.1007/s11517-015-1403-7

subject

Has Abstract

pub_date

2016-09-01 00:00:00

pages

1363-73

issue

eissn

0140-0118

issn

1741-0444

pii

10.1007/s11517-015-1403-7

journal_volume

pub_type

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Thermal distribution analysis of three-dimensional tumor-embedded breast models with different breast density compositions.