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Идёт набор NCT05450016

Assessment of the Breast Cosmesis Using Deep Neural Networks: an Exploratory Study (ABCD)

— Наблюдательное Breast Cancer

Ориентир для пациента и семьи

Простыми словами

Автоматическая сводка по структурированным данным реестра. Она помогает сориентироваться, но не заменяет официальный протокол или оценку врача.

Что изучают
Это наблюдательное исследование: исследуемое лечение участникам по протоколу не назначают.
Кому может быть актуально
Состояния в реестре: Breast Cancer. Базовые параметры: 19 лет — 80 лет · Женщины.
Что важно проверить
Возраст, диагноз и пол — только базовые ориентиры. Предыдущее лечение, анализы и другие обязательные условия указаны ниже в критериях участия.
Где проводится
Индия
Следующий шаг
Сохраните исследование, покажите его лечащему врачу и уточните актуальный статус у исследовательского центра. Расходы, документы и поездка →

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Обзор

Surgery and radiotherapy in breast cancer patients can cause treatment changes and may affect the final breast appearance. In this study, we are trying to evaluate the post treatment breast photographs of the patients and subject these to Artificial Intelligence based program so as to classify into appropriate categories based upon changes from baseline. This automated solution will help in decreasing the time required to achieve this task by physicians in the clinic.

Подробное описание

A new algorithm was introduced which is based on deep neural network (DNN) which receives an image as input and returns the coordinates of the breast key points as output. These key points are then given to a shortest-path algorithm that models images as graphs to refine breast key point localization. The algorithm learns, directly from the image, to compute features and to use those features in the analysis of the aesthetic result. This comprises of two main modules: regression and refinement of heatmaps, and regression of key points. To perform the heatmap regression, the U-Net model is used.

The goal of the first module is to generate an intermediate representation consisting on a fuzzy localization for the key points that are to be detected.

The second module receives and refines this fuzzy localization, and through complex calculations, outputting the x and y coordinates of the keypoints, and the data generated from which can be used for disease / image classification.

Первичные конечные точки

  • Proportion of patients with excellent/good cosmesis [Срок оценки: 3 years]
Вторичные конечные точки (1)
  • Kappa statistic between different deep neural networks [Срок оценки: 3 years]

Критерии участия

Критерии включения

  • Confirmed diagnosis of primary breast cancer (invasive or in situ)
  • Patient undergone breast conservation / Whole breast reconstruction
  • Patient received breast RT
  • Already provided written informed consent on earlier projects
  • Patient provided photographs of both breasts
  • Non-metastatic disease or oligometastatic
  • Age > 18 years
  • Reconsent given

Критерии исключения

  • Mastectomy without whole breast reconstruction
  • Bilateral breast cancer
  • Partial breast irradiation
  • Male patient
  • Limited life expectancy due to co-morbidity
  • Patients undergoing brachy boost

Критерии приведены из реестра в оригинале (на английском). Окончательную оценку соответствия проводит исследовательский центр.

Здоровые добровольцы: Да

Дизайн исследования

Модель наблюдения
Когортное

Центры проведения

Индия · 1 центр
  • Tata Memorial Centre — Mumbai

Публикации

  • Hill-Kayser CE, Vachani C, Hampshire MK, Di Lullo GA, Metz JM. Cosmetic outcomes and complications reported by patients having undergone breast-conserving treatment. Int J Radiat Oncol Biol Phys. 2012 Jul 1;83(3):839-44. doi: 10.1016/j.ijrobp.2011.08.013. Epub 2011 Dec 2. PMID 22137022
  • Cardoso JS, Silva W, Cardoso MJ. Evolution, current challenges, and future possibilities in the objective assessment of aesthetic outcome of breast cancer locoregional treatment. Breast. 2020 Feb;49:123-130. doi: 10.1016/j.breast.2019.11.006. Epub 2019 Nov 21. PMID 31790958
  • Vrieling C, Collette L, Bartelink E, Borger JH, Brenninkmeyer SJ, Horiot JC, Pierart M, Poortmans PM, Struikmans H, Van der Schueren E, Van Dongen JA, Van Limbergen E, Bartelink H. Validation of the methods of cosmetic assessment after breast-conserving therapy in the EORTC "boost versus no boost" trial. EORTC Radiotherapy and Breast Cancer Cooperative Groups. European Organization for Research an PMID 10524421
  • Kim MS, Reece GP, Beahm EK, Miller MJ, Atkinson EN, Markey MK. Objective assessment of aesthetic outcomes of breast cancer treatment: measuring ptosis from clinical photographs. Comput Biol Med. 2007 Jan;37(1):49-59. doi: 10.1016/j.compbiomed.2005.10.007. Epub 2006 Jan 24. PMID 16438948
  • Pezner RD, Patterson MP, Hill LR, Vora N, Desai KR, Archambeau JO, Lipsett JA. Breast retraction assessment: an objective evaluation of cosmetic results of patients treated conservatively for breast cancer. Int J Radiat Oncol Biol Phys. 1985 Mar;11(3):575-8. doi: 10.1016/0360-3016(85)90190-7. PMID 3972667
  • Pezner RD, Lipsett JA, Vora NL, Desai KR. Limited usefulness of observer-based cosmesis scales employed to evaluate patients treated conservatively for breast cancer. Int J Radiat Oncol Biol Phys. 1985 Jun;11(6):1117-9. doi: 10.1016/0360-3016(85)90058-6. PMID 3997593
  • Lowery JC, Wilkins EG, Kuzon WM, Davis JA. Evaluations of aesthetic results in breast reconstruction: an analysis of reliability. Ann Plast Surg. 1996 Jun;36(6):601-6; discussion 607. doi: 10.1097/00000637-199606000-00007. PMID 8792969
  • Cohen M, Evanoff B, George LT, Brandt KE. A subjective rating scale for evaluating the appearance outcome of autologous breast reconstruction. Plast Reconstr Surg. 2005 Aug;116(2):440-9. doi: 10.1097/01.prs.0000173214.05854.e4. PMID 16079671

Идентификаторы

NCT: NCT05450016 · 3734

Первоисточники (государственные реестры)

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