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1.
Rev. esp. med. nucl. imagen mol. (Ed. impr.) ; 42(4): 231-237, jul.- ago. 2023.
Artigo em Espanhol | IBECS | ID: ibc-223279

RESUMO

Objetivo Describir el conocimiento y la opinión de los profesionales sanitarios relacionados con la oncología acerca de la radiómica. Métodos Se elaboró un cuestionario de 12 preguntas (respuestas de selección múltiple, de escala tipo Likert y respuesta abierta), dirigido a profesionales relacionados con el diagnóstico/tratamiento de enfermedades oncológicas (oncología, radiodiagnóstico, medicina nuclear, oncología-radioterápica, hematooncología, radiofísica y anatomía patológica). Los participantes se clasificaron en dos grupos según su grado de formación: adjuntos y residentes. Resultados Un total de 114 profesionales completaron la encuesta (54% residentes, principalmente de las especialidades medicina nuclear y radiodiagnóstico). Los adjuntos obtuvieron un mejor desempeño en el área de conocimiento respecto a los residentes. En ambos grupos los encuestados respondieron estar de acuerdo con la utilidad de la radiómica para ayudar a realizar diagnósticos más precisos, facilitando el trabajo de los equipos médicos. Las ideas más frecuentes relacionadas con las desventajas del uso de la radiómica se relacionaron con la falta de sistematización en la adquisición de imágenes y la extracción de parámetros, la necesidad de entrenamiento de los profesionales y la inquietud sobre el reemplazo del trabajo humano por herramientas tecnológicas. Conclusiones La radiómica es un campo de estudio novedoso, cuyos aspectos más generales son conocidos por los profesionales sanitarios. Los profesionales encuestados son optimistas en cuanto a los beneficios que entregan esta y otros tipos de herramientas. El principal problema detectado fue la falta de sistematización en su implementación. El reemplazo de los profesionales y la pérdida de trabajo es una preocupación presente, pero menos prevalente y que puede responder a un fenómeno generacional (AU)


Aim To describe the knowledge and opinion of health professionals regarding the usefulness of radiomics in oncology. Methods A 12-question questionnaire (multiple-choice responses, Likert-type scale, and open response) was developed and sent to professionals related to diagnosis/treatment of oncological diseases (Oncology, Radiodiagnosis, Nuclear Medicine, Radiation Oncology, Hematology-Oncology, Radiophysics and Pathology). Participants were classified into two groups according to their level of training: attending physicians and residents. Results 114 professionals completed the survey (54% residents, mostly from Nuclear Medicine and Radiodiagnostic specialties). Attending physicians obtained a better performance in the area pf knowledge compared to residents. Both groups of respondents agreed regarding the usefulness of radiomics to help make more accurate diagnoses and promoting the work of medical teams and the most frequent disadvantages were related to the lack of systematization in the acquisition of images and extraction of parameters, the need for the training of professionals and concern about the replacement of human work by technological tools. Conclusions Radiomics is a novel field and the most general aspects are known by health professionals. The professionals surveyed were optimistic about the benefits provided by radiomics and other types of tools. The main problem detected was the lack of systematization in its implementation. The replacement of professionals and job loss is a concern, albeit less prevalent, and may respond to a generational phenomenon (AU)


Assuntos
Humanos , Masculino , Feminino , Adulto Jovem , Adulto , Pessoa de Meia-Idade , Processamento de Imagem Assistida por Computador , Inteligência Artificial , Oncologia , Conhecimento
2.
Rev. esp. med. nucl. imagen mol. (Ed. impr.) ; 42(2): 83-92, mar.-abr. 2023. tab, ilus
Artigo em Espanhol | IBECS | ID: ibc-217324

RESUMO

Objetivo Sintetizar la evidencia actual sobre la utilidad de la radiómica en el análisis de la imagen PET/TC en cáncer de mama local o localmente avanzado y evaluar la calidad metodológica de los estudios radiómicos publicados al respecto. Material y métodos Revisión sistemática de artículos en distintas bases de datos hasta 2021 utilizando los términos «PET», «radiomics», «texture», «breast». Se seleccionaron solo artículos con datos humanos y que incluyeran una imagen de PET en su análisis. Se excluyeron estudios con datos de pruebas y menos de 20 pacientes. De cada artículo se extrajo el tamaño muestral, el radiotrazador utilizado, la técnica de imagen y las características de imagen extraídas. Se determinó la calidad metodológica de los estudios mediante el instrumento QUADAS-2. Resultados Se seleccionaron 18 artículos. El diseño retrospectivo fue el más utilizado. La característica radiómica más estudiada fue el SUVmax. Diversos parámetros radiómicos se correlacionaron con la caracterización tumoral, y la heterogeneidad tumoral demostró utilidad para predecir el curso de la enfermedad y la respuesta al tratamiento. La mayoría de los artículos mostraron un alto riesgo de sesgo, derivado principalmente de la selección de pacientes. Conclusiones Se observó una alta probabilidad de sesgo en los artículos publicados. La radiómica es un campo aún en desarrollo y son necesarios más estudios para demostrar su utilidad en la práctica clínica habitual. La herramienta QUADAS-2 permite la valoración crítica de la calidad metodológica de la evidencia disponible. Pese a las limitaciones, la radiómica se muestra como una herramienta que puede ayudar a conseguir un manejo oncológico personalizado en el cáncer de mama (AU)


Aim To synthesize the current evidence of the usefulness of radiomics in PET/CT image analysis in local and locally advanced breast cancer. Also, to evaluate the methodological quality of the radiomic studies published. Methods Systematic review of articles in different databases until 2021 using the terms «PET», «radiomics», «texture», «breast». Only articles with human data and that included a PET image were included. Studies with simulated data and with less than 20 patients were excluded. The sample size, radiotracer used, imaging technique, and radiomics characteristics were extracted from each article. The methodological quality of the studies was determined using the QUADAS-2 tool. Results Eighteen articles were selected. The retrospective design was the most used. The most studied radiomic characteristic was SUVmax. Several radiomic parameters were correlated with tumor characterization, and tumor heterogeneity proved useful for predicting disease course and response to treatment. Most articles showed a high risk of bias, mainly from the patient selection. Conclusions A high probability of bias was observed in most of the published articles. Radiomics is a developing field and more studies are needed to demonstrate its usefulness in routine clinical practice. The QUADAS-2 tool allows critical assessment of the methodological quality of the available evidence. Despite its limitations, radiomics is shown to be an instrument that can help to achieve personalized oncologic management of breast cancer (AU)


Assuntos
Humanos , Feminino , Tomografia por Emissão de Pósitrons combinada à Tomografia Computadorizada/métodos , Neoplasias da Mama/diagnóstico por imagem , Processamento de Imagem Assistida por Computador , Reprodutibilidade dos Testes , Fluordesoxiglucose F18
3.
Artigo em Inglês | MEDLINE | ID: mdl-36842730

RESUMO

AIM: To describe the knowledge and opinion of health professionals regarding the usefulness of radiomics in oncology. METHODS: A 12-question questionnaire (multiple-choice responses, Likert-type scale, and open response) was developed and sent to professionals related to diagnosis/treatment of oncological diseases (Oncology, Radiodiagnosis, Nuclear Medicine, Radiation Oncology, Hematology-Oncology, Radiophysics and Pathology). Participants were classified into two groups according to their level of training: attending physicians and residents. RESULTS: 114 professionals completed the survey (54% residents, mostly from Nuclear Medicine and Radiodiagnostic specialties). Attending physicians obtained a better performance in the area pf knowledge compared to residents. Both groups of respondents agreed regarding the usefulness of radiomics to help make more accurate diagnoses and promoting the work of medical teams and the most frequent disadvantages were related to the lack of systematization in the acquisition of images and extraction of parameters, the need for the training of professionals and concern about the replacement of human work by technological tools. CONCLUSIONS: Radiomics is a novel field and the most general aspects are known by health professionals. The professionals surveyed were optimistic about the benefits provided by radiomics and other types of tools. The main problem detected was the lack of systematization in its implementation. The replacement of professionals and job loss is a concern, albeit less prevalent, and may respond to a generational phenomenon.


Assuntos
Oncologia , Radioterapia (Especialidade) , Humanos , Inquéritos e Questionários
4.
Artigo em Inglês | MEDLINE | ID: mdl-36375751

RESUMO

AIM: To synthesize the current evidence of the usefulness of radiomics in PET/CT image analysis in local and locally advanced breast cancer. Also, to evaluate the methodological quality of the radiomic studies published. METHODS: Systematic review of articles in different databases until 2021 using the terms "PET", "radiomics", "texture", "breast". Only articles with human data and that included a PET image were included. Studies with simulated data and with less than 20 patients were excluded. Were extracted sample size, radiotracer used, imaging technique, and radiomics characteristics from each article. The methodological quality of the studies was determined using the QUADAS-2 tool. RESULTS: 18 articles were selected. The retrospective design was the most used. The most studied radiomic characteristic was SUVmax. Several radiomic parameters were correlated with tumor characterization, and tumor heterogeneity proved useful for predicting disease course and response to treatment. Most articles showed a high risk of bias, mainly from the patient selection. CONCLUSIONS: A high probability of bias was observed in most of the published articles. Radiomics is a developing field and more studies are needed to demonstrate its usefulness in routine clinical practice. The QUADAS-2 tool allows critical assessment of the methodological quality of the available evidence. Despite its limitations, radiomics is shown to be an instrument that can help to achieve personalized oncologic management of breast cancer.


Assuntos
Neoplasias da Mama , Tomografia por Emissão de Pósitrons combinada à Tomografia Computadorizada , Humanos , Feminino , Tomografia por Emissão de Pósitrons combinada à Tomografia Computadorizada/métodos , Fluordesoxiglucose F18 , Estudos Retrospectivos , Processamento de Imagem Assistida por Computador/métodos
5.
Rev Esp Med Nucl ; 22(6): 395-402, 2003 Nov.
Artigo em Espanhol | MEDLINE | ID: mdl-14588232

RESUMO

OBJECTIVE: To determine the incidence of respiratory function changes on quantified ventilation-perfusion scintigraphy produced by breast cancer radiation therapy and its correlation with irradiated lung volume. MATERIAL AND METHODS: Prospective study on 43 patients with breast cancer who received adjuvant radiotherapy. Quantified ventilation-perfusion scintigraphy was carried out before and after radiotherapy (3 and 9 months). The differences of ventilation and perfusion were calculated subtracting the irradiated lung values from the contralateral lung values, and their correlations with the irradiated lung volume were analyzed. RESULTS: The scintigraphic parameter means of the irradiated lung were significantly lower than those of the contralateral lung, after radiotherapy. The incidence of patients with a total perfusion and ventilation decrease over 10 % was 21 %, except for the three-month ventilation, which was 23 %. The total ventilation difference was significantly correlated with the lung volume, presenting decreases over 10 % for volumes of 100 cm3 or more. All patients remained asymptomatic. CONCLUSIONS: The pulmonary scintigraphy changes derived from the breast cancer radiotherapy produced no clinical symptomatology. Regarding scintigraphy, ventilation decreases when the irradiated lung volume increases, so a follow-up of these patients' pulmonary function should be performed when the lung volume irradiation cannot be lower than 100 cm3.


Assuntos
Neoplasias da Mama/radioterapia , Pulmão/diagnóstico por imagem , Lesões por Radiação/diagnóstico por imagem , Adulto , Idoso , Protocolos de Quimioterapia Combinada Antineoplásica/uso terapêutico , Neoplasias da Mama/terapia , Terapia Combinada , Feminino , Humanos , Incidência , Pulmão/fisiopatologia , Lesão Pulmonar , Medidas de Volume Pulmonar , Mastectomia , Pessoa de Meia-Idade , Estudos Prospectivos , Lesões por Radiação/epidemiologia , Cintilografia , Relação Ventilação-Perfusão
6.
Rev. esp. med. nucl. (Ed. impr.) ; 22(6): 395-402, nov. 2003.
Artigo em Es | IBECS | ID: ibc-27459

RESUMO

Objetivo: Determinar, mediante gammagrafía de ventilación y perfusión cuantificada, la incidencia de alteraciones en la función respiratoria producidas por la irradiación en el cáncer de mama, y su correlación con el volumen de pulmón irradiado.Material y métodos: Estudio prospectivo de 43 pacientes con cáncer de mama sometidas a radioterapia complementaria. Se practicó gammagrafía pulmonar de ventilación y perfusión cuantificada antes y después de la radioterapia (a los 3 y 9 meses). Las diferencias de perfusión y ventilación se calcularon restando a los valores obtenidos para el pulmón irradiado los valores del pulmón contralateral y se estudió su relación con el volumen pulmonar irradiado.Resultados: Las medias de los parámetros gammagráficos del pulmón irradiado fueron inferiores a las del pulmón contralateral, de forma significativa, después de la radioterapia. La incidencia de pacientes con descenso de perfusión y ventilación global superiores al 10 por ciento fue 21 por ciento, excepto para la ventilación a los 3 meses, que fue 23 por ciento. La diferencia de ventilación global se correlacionó de forma significativa con el volumen pulmonar, apreciándose descensos superiores al 10 por ciento a partir de 100 cm3.Todas las pacientes permanecieron asintomáticas.Conclusiones: Los cambios gammagráficos de ventilación y perfusión derivados de la irradiación pulmonar no produjeron sintomatología clínica alguna. Gammagráficamente, la ventilación desciende con el incremento del volumen pulmonar irradiado, siendo recomendable llevar a cabo un seguimiento de la función pulmonar de estas pacientes cuando no sea factible la irradiación de un volumen de pulmón inferior a 100 cm3. (AU)


Assuntos
Pessoa de Meia-Idade , Adulto , Idoso , Feminino , Humanos , Relação Ventilação-Perfusão , Incidência , Estudos Prospectivos , Lesões por Radiação , Protocolos de Quimioterapia Combinada Antineoplásica , Terapia Combinada , Mastectomia , Medidas de Volume Pulmonar , Pulmão , Neoplasias da Mama
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