{"title":"老年癌症患者乳腺磁共振成像(MRI)测量肿瘤大小:乳腺MRI与乳腺造影和超声的比较","authors":"J. An, J. Woo, Ji Ye Lee, B. Lee","doi":"10.5812/iranjradiol.110817","DOIUrl":null,"url":null,"abstract":"Background: With a rapid increase in the aging population around the world, there has been a surge in the number of elderly breast cancer patients. Magnetic resonance imaging (MRI) is commonly used in preoperative assessments for elderly patients. However, there has been no consensus on the accuracy of tumor size measurements by MRI. Objectives: To compare the accuracy of MRI versus conventional imaging methods, namely, mammography (MG) and ultrasound (US), in tumor size measurements in elderly patients and to determine the predictors of measurement accuracy. Patients and Methods: This study was conducted on 134 patients, aged 50 years or above (137 breasts with invasive cancer). The tumor size and T stage were assessed using MG, US, and MRI, and the results were compared with pathological findings. The tumor size differences between the imaging and pathological findings were classified as ≤ 0.5 cm or > 0.5 cm. Differences in tumor size and T stage were also analyzed based on age group (≥ 60 years vs. < 60 years), using chi-square test, Fisher’s exact test, and Cohen’s kappa coefficient. The diagnostic sensitivity, specificity, and accuracy were also measured. Besides, a multivariate logistic regression analysis was performed to evaluate the predictors of tumor size differences. Results: Tumor size differences ≤ 0.5 cm, T-stage agreement, and diagnostic performance of MRI for T stages ≥ 2 were higher in the elderly group compared to the younger group. The T-stage agreement with the histopathological results was higher on MRI compared to conventional imaging methods. For diagnosis of T stages ≥ 2, MRI showed the highest sensitivity, while US showed the highest specificity. The calcification type, dense breasts, and histological grade 3 were predictors of tumor size differences > 0.5 cm. Conclusion: The accuracy of tumor size measurements on MRI was higher in elderly patients aged ≥ 60 years. The diagnostic accuracy also increased in elderly patients with non-dense breasts and mass-type lesions. In T-stage analysis, MRI showed the highest sensitivity, while US showed the highest specificity.","PeriodicalId":50273,"journal":{"name":"Iranian Journal of Radiology","volume":" ","pages":""},"PeriodicalIF":0.2000,"publicationDate":"2021-07-31","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":"0","resultStr":"{\"title\":\"Tumor Size Measurements with Breast Magnetic Resonance Imaging (MRI) in Elderly Patients with Breast Cancer: A Comparison of Breast MRI with Mammography and Ultrasound\",\"authors\":\"J. An, J. Woo, Ji Ye Lee, B. Lee\",\"doi\":\"10.5812/iranjradiol.110817\",\"DOIUrl\":null,\"url\":null,\"abstract\":\"Background: With a rapid increase in the aging population around the world, there has been a surge in the number of elderly breast cancer patients. Magnetic resonance imaging (MRI) is commonly used in preoperative assessments for elderly patients. However, there has been no consensus on the accuracy of tumor size measurements by MRI. Objectives: To compare the accuracy of MRI versus conventional imaging methods, namely, mammography (MG) and ultrasound (US), in tumor size measurements in elderly patients and to determine the predictors of measurement accuracy. Patients and Methods: This study was conducted on 134 patients, aged 50 years or above (137 breasts with invasive cancer). The tumor size and T stage were assessed using MG, US, and MRI, and the results were compared with pathological findings. The tumor size differences between the imaging and pathological findings were classified as ≤ 0.5 cm or > 0.5 cm. Differences in tumor size and T stage were also analyzed based on age group (≥ 60 years vs. < 60 years), using chi-square test, Fisher’s exact test, and Cohen’s kappa coefficient. The diagnostic sensitivity, specificity, and accuracy were also measured. Besides, a multivariate logistic regression analysis was performed to evaluate the predictors of tumor size differences. Results: Tumor size differences ≤ 0.5 cm, T-stage agreement, and diagnostic performance of MRI for T stages ≥ 2 were higher in the elderly group compared to the younger group. The T-stage agreement with the histopathological results was higher on MRI compared to conventional imaging methods. For diagnosis of T stages ≥ 2, MRI showed the highest sensitivity, while US showed the highest specificity. The calcification type, dense breasts, and histological grade 3 were predictors of tumor size differences > 0.5 cm. Conclusion: The accuracy of tumor size measurements on MRI was higher in elderly patients aged ≥ 60 years. The diagnostic accuracy also increased in elderly patients with non-dense breasts and mass-type lesions. In T-stage analysis, MRI showed the highest sensitivity, while US showed the highest specificity.\",\"PeriodicalId\":50273,\"journal\":{\"name\":\"Iranian Journal of Radiology\",\"volume\":\" \",\"pages\":\"\"},\"PeriodicalIF\":0.2000,\"publicationDate\":\"2021-07-31\",\"publicationTypes\":\"Journal Article\",\"fieldsOfStudy\":null,\"isOpenAccess\":false,\"openAccessPdf\":\"\",\"citationCount\":\"0\",\"resultStr\":null,\"platform\":\"Semanticscholar\",\"paperid\":null,\"PeriodicalName\":\"Iranian Journal of Radiology\",\"FirstCategoryId\":\"3\",\"ListUrlMain\":\"https://doi.org/10.5812/iranjradiol.110817\",\"RegionNum\":4,\"RegionCategory\":\"医学\",\"ArticlePicture\":[],\"TitleCN\":null,\"AbstractTextCN\":null,\"PMCID\":null,\"EPubDate\":\"\",\"PubModel\":\"\",\"JCR\":\"Q4\",\"JCRName\":\"RADIOLOGY, NUCLEAR MEDICINE & MEDICAL IMAGING\",\"Score\":null,\"Total\":0}","platform":"Semanticscholar","paperid":null,"PeriodicalName":"Iranian Journal of Radiology","FirstCategoryId":"3","ListUrlMain":"https://doi.org/10.5812/iranjradiol.110817","RegionNum":4,"RegionCategory":"医学","ArticlePicture":[],"TitleCN":null,"AbstractTextCN":null,"PMCID":null,"EPubDate":"","PubModel":"","JCR":"Q4","JCRName":"RADIOLOGY, NUCLEAR MEDICINE & MEDICAL IMAGING","Score":null,"Total":0}
Tumor Size Measurements with Breast Magnetic Resonance Imaging (MRI) in Elderly Patients with Breast Cancer: A Comparison of Breast MRI with Mammography and Ultrasound
Background: With a rapid increase in the aging population around the world, there has been a surge in the number of elderly breast cancer patients. Magnetic resonance imaging (MRI) is commonly used in preoperative assessments for elderly patients. However, there has been no consensus on the accuracy of tumor size measurements by MRI. Objectives: To compare the accuracy of MRI versus conventional imaging methods, namely, mammography (MG) and ultrasound (US), in tumor size measurements in elderly patients and to determine the predictors of measurement accuracy. Patients and Methods: This study was conducted on 134 patients, aged 50 years or above (137 breasts with invasive cancer). The tumor size and T stage were assessed using MG, US, and MRI, and the results were compared with pathological findings. The tumor size differences between the imaging and pathological findings were classified as ≤ 0.5 cm or > 0.5 cm. Differences in tumor size and T stage were also analyzed based on age group (≥ 60 years vs. < 60 years), using chi-square test, Fisher’s exact test, and Cohen’s kappa coefficient. The diagnostic sensitivity, specificity, and accuracy were also measured. Besides, a multivariate logistic regression analysis was performed to evaluate the predictors of tumor size differences. Results: Tumor size differences ≤ 0.5 cm, T-stage agreement, and diagnostic performance of MRI for T stages ≥ 2 were higher in the elderly group compared to the younger group. The T-stage agreement with the histopathological results was higher on MRI compared to conventional imaging methods. For diagnosis of T stages ≥ 2, MRI showed the highest sensitivity, while US showed the highest specificity. The calcification type, dense breasts, and histological grade 3 were predictors of tumor size differences > 0.5 cm. Conclusion: The accuracy of tumor size measurements on MRI was higher in elderly patients aged ≥ 60 years. The diagnostic accuracy also increased in elderly patients with non-dense breasts and mass-type lesions. In T-stage analysis, MRI showed the highest sensitivity, while US showed the highest specificity.
期刊介绍:
The Iranian Journal of Radiology is the official journal of Tehran University of Medical Sciences and the Iranian Society of Radiology. It is a scientific forum dedicated primarily to the topics relevant to radiology and allied sciences of the developing countries, which have been neglected or have received little attention in the Western medical literature.
This journal particularly welcomes manuscripts which deal with radiology and imaging from geographic regions wherein problems regarding economic, social, ethnic and cultural parameters affecting prevalence and course of the illness are taken into consideration.
The Iranian Journal of Radiology has been launched in order to interchange information in the field of radiology and other related scientific spheres. In accordance with the objective of developing the scientific ability of the radiological population and other related scientific fields, this journal publishes research articles, evidence-based review articles, and case reports focused on regional tropics.
Iranian Journal of Radiology operates in agreement with the below principles in compliance with continuous quality improvement:
1-Increasing the satisfaction of the readers, authors, staff, and co-workers.
2-Improving the scientific content and appearance of the journal.
3-Advancing the scientific validity of the journal both nationally and internationally.
Such basics are accomplished only by aggregative effort and reciprocity of the radiological population and related sciences, authorities, and staff of the journal.