2008
DOI: 10.1109/tmi.2008.926049
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Regional Admittivity Spectra With Tomosynthesis Images for Breast Cancer Detection: Preliminary Patient Study

Abstract: It has been known for some time that many tumors have a significantly different conductivity and permittivity from surrounding normal tissue. This high “contrast” in tissue electrical properties, occurring between a few kilohertz and several megahertz, may permit differentiating malignant from benign tissues. Here we show the ability of electrical impedance spectroscopy (EIS) to roughly localize and clearly distinguish cancers from normal tissues and benign lesions. Localization of these lesions is confirmed b… Show more

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Cited by 27 publications
(9 citation statements)
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“…One research group has investigated the combination of DBT with electrical impedance tomography for characterization of suspicious lesions, showing promising results with a small number of patient cases. [142][143][144] Combining DBT with ultrasound has also been investigated, with the development of a prototype system that acquires the tomosynthesis image and immediately afterwards positions and scans an ultrasound probe across the compressed breast, obtaining a co-registered 3D ultrasound image. 145,146 The combination of morphological information with functional information is also being developed by a group that is investigating combining DBT with limited angle Tc-99m sestamibi-based single photon emission computed tomography (SPECT).…”
Section: Ivd Multimodality Imagingmentioning
confidence: 99%
“…One research group has investigated the combination of DBT with electrical impedance tomography for characterization of suspicious lesions, showing promising results with a small number of patient cases. [142][143][144] Combining DBT with ultrasound has also been investigated, with the development of a prototype system that acquires the tomosynthesis image and immediately afterwards positions and scans an ultrasound probe across the compressed breast, obtaining a co-registered 3D ultrasound image. 145,146 The combination of morphological information with functional information is also being developed by a group that is investigating combining DBT with limited angle Tc-99m sestamibi-based single photon emission computed tomography (SPECT).…”
Section: Ivd Multimodality Imagingmentioning
confidence: 99%
“…Twelve articles described studies into breast cancer on a total of 2460 patients. Six of the 12 studies looked at in vivo tissue by measuring the electrical impedance and electrical properties of the overlying skin or lesion itself intra-operatively [12][13][14][15][16][17], whilst the other six studies directly measured impedance of fresh ex vivo specimens [18][19][20][21][22][23]. Three studies looked at intra-ductal carcinoma (IDC) alone [12,13,20], whilst six studies looked at various different carcinoma subtypes [14-17, 21, 22], and the remaining three studies did not report the exact histopathology of the cancer specimens tested [14,19,21].…”
Section: Breast Cancermentioning
confidence: 99%
“…One study was able to integrate the various parameters (R o /R ∝ and f c ) to create a new parameter that was able to distinguish malignant tissue with an AUROC of 0.93 [24]. Four of the breast studies used EIS technology either integrated or in combination with mammographic technology in order to produce images as well as quantitative measurements of the tissue [13,[15][16][17]. One study was able to show that impedance was affected by age and hormonal state of the patient and was most sensitive at identifying cancers in patients under 40 without any palpable lesions [22].…”
Section: Breast Cancermentioning
confidence: 99%
“…The similarities of the tumor's symptoms are almost same as the inflammation of the skin problem. Breast pain, swelling, and reddish skin are very common symptoms of cancer but people ignore it as they take it as normal skin inflammatory problem [9][10][11]. Fig.…”
Section: B Problem Statementmentioning
confidence: 99%
“…(x-a)(x-b) = x 2 -(a+b)x + ab (10) Optimization issue of the weight values can be resolved by using the following equations foe SVMs:…”
Section: Support Vector Machine (Svm)mentioning
confidence: 99%