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Augmented reality in breast cancer surgical planning
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O cancro da mama é a forma de cancro mais prevalente e com a maior taxa de mortalidade entre as mulheres. standard. Esta cirurgia, envolve a excisão do tumor com margens livres, tentando preservar a forma natural da mama. Por isso, antes da cirurgia, é essencial compreender e visualizar a localização do tumor, o seu tamanho e a relação entre o volume da mama e o volume do tumor, de modo a permitir a remoção total do cancro sem compromisso estético. O principal objetivo deste estudo foi determinar se a visualização imersiva de modelos mamários em 3D poderia melhorar o planeamento cirúrgico do cancro da mama quando comparada com a interpretação de apenas a RM mamária. Foram recrutadas 30 doentes e as RM mamárias foram registadas nas posições prona e supina. As referências anatómicas e o tumor foram anotados utilizando um software de computação de imagem, de modo a gerar modelos 3D do cancro da mama, prontos para serem visualizados com óculos de realidade aumentada. Foi realizado um estudo de utilizadores com 5 cirurgiões, para avaliar a usabilidade da ferramenta imersiva com os HoloLens 2®, comparando-a com a interpretação de apenas a RM mamária. Os questionários Raw NASA-TLX e SUS, juntamente com uma entrevista semiestruturada, foram aplicados a todos os utilizadores, para avaliar a qualidade e a utilidade da visualização do tumor. Este estudo ilustrou os vários benefícios da computação espacial da próxima geração no planeamento da cirurgia do cancro da mama em comparação com os métodos tradicionais, especificamente por oferecer uma representação mais precisa da vista intraoperatória, o que, em última análise, pode levar à redução das taxas de mastectomia.
Breast cancer is the most prevalent form of cancer and has the highest mortality rate among women. Breast cancer conservative surgery plus adjuvant radiotherapy is considered as a gold standard. It involves tumor excision with clear margins, while trying to preserve the natural shape of the breast. Therefore, prior to surgery, it is essential to comprehend and visualize tumor's location, size and the relationship between breast volume and tumor volume in order to allow total cancer removal without aesthetic compromise. The main goal of this research was to determine whether immersive visualization of 3D breast models could improve breast cancer surgical planning when compared to breast MRI interpretation alone. Thirty patients were recruited, and breast MRI were registered in the prone and supine position. Both the anatomical references and tumor were annotated using an image computing software to generate breast cancer 3D models, ready to be visualized with an optical see-through augmented reality headset. A user study was performed with 5 surgeons, to evaluate an immersive tool usability with the HoloLens 2® and compare it to breast MRI interpretation alone. The Raw NASA-TLX and the SUS questionnaires along with a semi-structured interview were given to all users, to assess the quality and usefulness of tumor visualization. This study illustrated several benefits of next generation spatial computing in breast cancer surgery planning compared to the standard methods, specifically by offering a more accurate representation of the intraoperative view, that ultimately could lead to reduce mastectomy rates.
Breast cancer is the most prevalent form of cancer and has the highest mortality rate among women. Breast cancer conservative surgery plus adjuvant radiotherapy is considered as a gold standard. It involves tumor excision with clear margins, while trying to preserve the natural shape of the breast. Therefore, prior to surgery, it is essential to comprehend and visualize tumor's location, size and the relationship between breast volume and tumor volume in order to allow total cancer removal without aesthetic compromise. The main goal of this research was to determine whether immersive visualization of 3D breast models could improve breast cancer surgical planning when compared to breast MRI interpretation alone. Thirty patients were recruited, and breast MRI were registered in the prone and supine position. Both the anatomical references and tumor were annotated using an image computing software to generate breast cancer 3D models, ready to be visualized with an optical see-through augmented reality headset. A user study was performed with 5 surgeons, to evaluate an immersive tool usability with the HoloLens 2® and compare it to breast MRI interpretation alone. The Raw NASA-TLX and the SUS questionnaires along with a semi-structured interview were given to all users, to assess the quality and usefulness of tumor visualization. This study illustrated several benefits of next generation spatial computing in breast cancer surgery planning compared to the standard methods, specifically by offering a more accurate representation of the intraoperative view, that ultimately could lead to reduce mastectomy rates.
Descrição
Trabalho Final do Curso de Mestrado Integrado em Medicina, Faculdade de Medicina, Universidade de Lisboa, 2024
Palavras-chave
Realidade aumentada Cirurgia digital Modelo de mama 3D Estimativa do volume mamário