Real-Time Evaluation of Breast Self-Examination Using Computer Vision

Breast cancer is the most common cancer among women worldwide and breast self-examination (BSE) is considered as the most cost-effective approach for early breast cancer detection. The general objective of this paper is to design and develop a computer vision algorithm to evaluate the BSE performance in real-time. The first stage of the algorithm presents a method for detecting and tracking the nipples in frames while a woman performs BSE; the second stage presents amethod for localizing the breast region and blocks of pixels related to palpation of the breast, and the third stage focuses on detecting the palpated blocks in the breast region. The palpated blocks are highlighted at the time of BSE performance. In a correct BSE performance, all blocks must be palpated, checked, and highlighted, respectively. If any abnormality, such as masses, is detected, then this must be reported to a doctor to confirm the presence of this abnormality and proceed to perform other confirmatory tests. The experimental results have shown that the BSE evaluation algorithm presented in this paper provides robust performance

Real-Time Evaluation of Breast Self-Examination Using Computer Vision

Breast cancer is the most common cancer among women worldwide and breast self-examination (BSE) is considered as the most cost-effective approach for early breast cancer detection. The general objective of this paper is to design and develop a computer vision algorithm to evaluate the BSE performance in real-time. The first stage of the algorithm presents a method for detecting and tracking the nipples in frames while a woman performs BSE; the second stage presents amethod for localizing the breast region and blocks of pixels related to palpation of the breast, and the third stage focuses on detecting the palpated blocks in the breast region. The palpated blocks are highlighted at the time of BSE performance. In a correct BSE performance, all blocks must be palpated, checked, and highlighted, respectively. If any abnormality, such as masses, is detected, then this must be reported to a doctor to confirm the presence of this abnormality and proceed to perform other confirmatory tests. The experimental results have shown that the BSE evaluation algorithm presented in this paper provides robust performance

Utilidad de la técnica ROLL (radioguided ocult lesion localization) en la exéresis de lesiones no palpables de mama

Avaluar l'eficàcia de la localització radioguiada (ROLL) de lesions ocultes de mama (LNPM)respecte a la tècnica estàndard, l'ham quirúrgic. MÈTODE: S'han estudiat 161 dones amb LNPM, 80 marcades amb ham quirúrgic el mateix dia de la intervenció i 81 marcades amb la injecció intratumoral de 3 mCi de Tc99m Nanocoloide el dia previ a la cirurgia. Les lesions es van localitzar per ecografia o estereotàxia. Les tumorectomies es van fer , en el primer grup seguint la direcció de l'ham des de l'entrada fins la punta, i en el segon grup amb l'ajuda d'una sonda gammadetectora que indicava el lloc de màxima concentració de radioactivitat, on es trobava el tumor. Posteriorment es comprovaven els marges quirúrgics al servei d'anatomia patològica, determinant la necessitat d'ampliació si el marge es trobava a menys de 5 mm de la vora tumoral en l'estudi intraoperatori i a menys de 2 mm en l'estudi diferit. Es van recollir dades de percentatge de detecció, afectació de marges quirúrgics, número d'ampliacions, presència de tumor residual a l'ampliació, reintervencions, volum de la tumorectomia i volum total extret, ratio volum/tumor, complicacions i influència del metge nuclear. RESULTATS: Es van observar resultats sense diferencies significatives entre els dos grups en percentatge de detecció, afectació de marges, número d'ampliacions, presència de tumor residual a l'ampliació, reintervencions, volum de la tumorectomia , volum total extret, ratio volum/tumor i complicacions. L'anàlisi multivariant mostra que els factors condicionants del volum extret son la tècnica de marcatge radiològic, el cirurgià i el metge nuclear. CONCLUSIONS: La tècnica ROLL permet la detecció i exeresis de les LNPM amb la mateixa eficàcia que l'ham i afegeix la possibilitat de detecció del gangli sentinella en un mateix acte.OBJETIVO: Evaluar la eficacia de la localización radioguiada (ROLL) de lesiones ocultas de mama (LNPM) respecto a la técnica estándar, el arpón quirúrgico. MÉTODO: Se han estudiado 161 mujeres con LNPM, 80 marcadas con arpón el mismo día de la intervención y 81 marcadas con inyección intratumoral de 3 mCi de Tc99m Nanocoloide el día previo a la cirugía. Las lesiones se localizaron por ecografía o estereotaxia. Las tumorectomías se realizaron , en el primer grupo siguiendo la dirección del arpón desde su entrada hasta la punta, y en el segundo grupo con la ayuda de una sonda gammadetectora que indicaba el punto de máxima concentración de radioactividad, donde se encontraba el tumor. Posteriormente se comprobaron los márgenes quirúrgicos en el servicio de anatomía patológica, determinando la necesidad de ampliación si el margen era menor a 5 mm del borde tumoral en el estudio intraoperatorio y menor a 2 mm en el estudio diferido. Se recogieron datos de porcentaje de detección, afectación de márgenes quirúrgicos, número de ampliaciones, presencia de tumor residual en la ampliación, reintervenciones, volumen de la tumorectomía y volumen total extraído, ratio volumen/tumor, complicaciones e influencia del médico nuclear. RESULTADOS: Se observaron resultados sin diferencias significativas entre ambos grupos en porcentaje de detección, afectación de márgenes, número de ampliaciones, presencia de tumor residual en la ampliación, reintervenciones, volumen de la tumorectomía , volumen total extraído, ratio volumen/tumor y complicaciones. El análisis multivariante mostró que los factores condicionantes del volumen extraído son la técnica de marcaje radiológico, el cirujano y el médico nuclear. CONCLUSIONES: La técnica ROLL permite la detección i exeresis de las LNPM con la misma eficacia que el arpón y añade la posibilidad de detección simultánea del ganglio centinela.PURPOSE: Evaluate the efficiency of radioguided occult lesion localization (ROLL) in non palpable breast lesions (NPBL) regard to the gold standard technique, the surgical wire. METHOD: Has been studied 161 women with NPBL, 80 marked with wire the same day of the surgery, and 81 marked with the intratumoral injection of 3 mCi of Tc99m-Nanocoloide the previous day to the surgery. The NPBL were located by ultrasound or stereotactic guidance. The lumpectomies were made , in the first group following the wire direction since its entry to the tip, and in the second group with the help of a gammaprobe that indicated the place of maximum radioactivity concentration, where tumor was located. Surgical margins were checked by pathology service, determining the need of extension if the margin were less than 5 mm of the tumoral edge in the intrasurgical study and to less than 2 mm in the differed study. Data were collected about detection average, surgical margins, number of extensions, presence of residual tumor on the extension, second surgeries, lumpectomy volume and total resected volume, volume/tumor ratio, complications and influence of the nuclear doctor. RESULTS: Not significant differences were observed between the two groups in detection average, surgical margins, number of extensions, presence of residual tumor on the extension, second surgeries, lumpectomy volume and total resected volume, volume/tumor ratio and complications. The multivariate analysis showed the factors that condition the resected volume were the radiological guidance technique, the surgeon and the nuclear doctor. CONCLUSIONS: ROLL allows the detection and resection of the NPBL with the same efficiency than the wire and adds the possibility of the sentinel node detection in a same act

Real-time evaluation of breast self-examination using computer vision

Breast cancer is the most common cancer among women worldwide and breast self-examination (BSE) is considered as the most cost-effective approach for early breast cancer detection. The general objective of this paper is to design and develop a computer vision algorithm to evaluate the BSE performance in real-time. The first stage of the algorithm presents a method for detecting and tracking the nipples in frames while a woman performs BSE; the second stage presents a method for localizing the breast region and blocks of pixels related to palpation of the breast, and the third stage focuses on detecting the palpated blocks in the breast region. The palpated blocks are highlighted at the time of BSE performance. In a correct BSE performance, all blocks must be palpated, checked, and highlighted, respectively. If any abnormality, such as masses, is detected, then this must be reported to a doctor to confirm the presence of this abnormality and proceed to perform other confirmatory tests. The experimental results have shown that the BSE evaluation algorithm presented in this paper provides robust performance. © 2014 Eman Mohammadi et al