Resolution requirements for mammographic displays

乳腺X线摄影显示器的分辨率要求

• 批准号: 6751154
• 负责人: Ehsan Samei
• 金额: $ 17.9万
• 依托单位: DUKE UNIVERSITY
• 依托单位国家: 美国
• 财政年份: 2003
• 资助国家: 美国
• 起止时间: 2003-07-01 至 2006-06-30
• 项目状态: 已结题
• 来源: https://reporter.nih.gov/project-details/6751154
• 关键词: bioimaging /biomedical imaging; breast neoplasm /cancer diagnosis; clinical biomedical equipment; data collection methodology /evaluation; diagnosis design /evaluation; diagnosis quality /standard; digital imaging; early diagnosis; human data; image processing; mammography; mathematical model; method development; patient safety /medical error

DESCRIPTION (provided by applicant):Breast cancer is one of the leading causes of cancer death in the United States, claiming about 46,000 lives eve U year. Marmnography has been proven effective in the diagnosis of breast cancer. However, the appearance of early breast cancer in mammograms is often subtle, necessitating the preservation of subtle features of mammograms when images are displayed to the radiologists for diagnostic interpretation. Digital mammography has the potential to hnprove the early detection of breast cancer. However, current medical soft-copy display devices have a number of limitations that may compromise the diagnostic effectiveness of digital mammography by failing to adequately represent the subtle features associated with early disease. Objective: The long-term goal of this project is to optimize the display quality" of digital mammograms, leading to improved early detection, diagnosis, and treatment of breast cancer. This proposal addresses one key aspect of display quality, resolution. This study aims 1) to substantiate the effects of the resolution characteristics of soft-copy display devices on the accuracy of mammographic interpretation in digital mammography, and 2) to define a resolution range for mammographic soft-copy display devices within which the diagnostic capability of digital mammograms to reveal the early signs of breast cancer is not compromised. Study Design: Initially, methods will be developed to simulate display presentations of soft-copy display devices and to simulate mammographic lesions (benign and malignant masses and microcalcifications). The quality of the simulations will be validated by objective quantitative methods. Mathematical perception models and the simulations in conjunction with real mammographic backgrounds will be used to assess the influence of the display resolution characteristics on the diagnostic interpretation of digital mammograms. The optimum display resolution setting and the resolution ranges within which diagnosis is not degraded more than specified levels will be determined. The validity of the model predictions will be examined in two observer performance experiments, one with mammographic backgrounds containing simulated lesions, and one with actual mammography cases. The results will be used to formulate recommendations to the breast imaging community concerning display resolution criteria for safe and optimized soft-copy display of digital mammograms.

描述（由申请人提供）：乳腺癌是美国癌症死亡的主要原因之一，声称大约有46,000年的生命年。事实证明，Marmnography在诊断乳腺癌方面有效。然而，乳房X线照片中早期乳腺癌的出现通常是微妙的，需要在将图像显示给放射科医生以进行诊断解释时保存乳房X线照片的微妙特征。数字乳房X线摄影有可能早期发现乳腺癌。但是，当前的医学软拷贝显示器具有许多局限性，可能会损害数字乳房X线摄影的诊断有效性，而无法充分代表与早期疾病相关的微妙特征。目的：该项目的长期目标是优化“数字乳房X线照片的显示质量”，从而改善了乳腺癌的早期发现，诊断和治疗。该提案解决了显示质量的关键方面，解决方案的一个关键方面。本研究旨在证实软拷贝拷贝性展示设备在乳房疗程中的效果的影响。数字乳房X线照片的诊断能力揭示了乳腺癌的早期迹象。乳房X线学背景将用于评估显示分辨率特征对数字乳房X线照片诊断解释的影响。将确定最佳的显示分辨率设置和分辨率范围不会降低诊断的范围远远超过指定级别。模型预测的有效性将在两个观察者性能实验中进行检查，一个具有模拟病变的乳房X线摄影背景，另一种具有实际乳房X线摄影病例。结果将用于为乳房成像社区提出建议，涉及显示分辨率标准，以实现安全和优化的数字乳房X线照片的软拷贝显示。

项目成果

Improving mammographic decision accuracy by incorporating observer ratings with interpretation time.

• DOI: 10.1259/bjr/96931332
• 发表时间: 2006-12-01
• 期刊: The British journal of radiology
• 作者: Saunders, R S;Samei, E
• 通讯作者: Samei, E

Comparison of LCD and CRT displays based on efficacy for digital mammography.

基于数字乳房 X 光检查功效的 LCD 和 CRT 显示器比较。

• DOI: 10.1016/j.acra.2006.07.017
• 发表时间: 2006
• 期刊: Academic radiology
• 影响因子: 4.8
• 作者: Saunders,RobertS;Samei,Ehsan;Baker,Jay;Delong,David;Soo,MaryScott;Walsh,Ruth;Pisano,Etta;Kuzmiak,CherieM;Pavic,Dag
• 通讯作者: Pavic,Dag