Efficacy of spot compression-magnification and tangential views in mammographic evaluation of palpable breast masses.

Faulk, R M; Sickles, E A

doi:10.1148/radiology.185.1.1523339

Cited by 27 publications

(4 citation statements)

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“…Furthermore, zooming display in soft-copy reading may not attenuate the role of magnification mammography in other clinical situations, including the evaluation of mammographic abnormalities, such as asymmetry and distortion, and evaluation of the lesion once again under different positions [13,14]. Magnification mammography would still be useful for the characterisation of asymmetry or distortion using a spot-compression paddle and for the confirmation of layering calcification in cases of ''milk of calcium'' using a true lateral view.…”

Section: Discussionmentioning

confidence: 99%

Zooming method (× 2.0) of digital mammographyvsdigital magnification view (× 1.8) in full-field digital mammography for the diagnosis of microcalcifications

Kim

Youk

Kang

et al. 2010

BJR

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Zooming method ( 6 2.0) of digital mammography vs digital magnification view (6 1.8) ABSTRACT. The purpose of this study was to determine whether the interpretation of microcalcifications assessed on images zoomed (6 2.0) from digital mammograms is at least equivalent to that from digital magnification mammography (6 1.8) with respect to diagnostic accuracy and image quality. Three radiologists with different levels of experience in mammography reviewed each full-field digital mammography reader set for 185 patients with pathologically proven microcalcification clusters, which consisted of digital magnification mammograms (MAGs) with a magnification factor of 1.8 and images zoomed from mammograms (ZOOM) with a zoom factor of 2.0. Each radiologist rated their suspicion of breast cancer in microcalcific lesions using a six-point scale and the image quality and their confidence in the decisions using a five-point scale. Results were analysed according to display methods using areas under the receiver operating characteristic curves (A z value) for ZOOM and MAGs to interpret microcalcifications, and the Wilcoxon matched pairs signed rank test for image quality and confidence levels. There was no statistically significant difference in the level of suspicion of breast cancer between the ZOOM and MAG groups (A z 50.8680 for ZOOM; A z 50.8682 for MAG; p50.9897). However, MAG images were significantly better than ZOOM images in terms of visual imaging quality (p , 0.001), and the confidence level with MAG was better than with ZOOM (p , 0.001). In conclusion, the performance of radiologists in the diagnosis of microcalcifications using ZOOM was similar to that using MAGs, although image quality and confidence levels were better using MAGs.

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Section: Discussionmentioning

confidence: 99%

Zooming method (× 2.0) of digital mammographyvsdigital magnification view (× 1.8) in full-field digital mammography for the diagnosis of microcalcifications

Kim

Youk

Kang

et al. 2010

BJR

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“…DBT in standard views and CSC are both clinically available for patients who have ambiguous findings on FFDM, such as vague masses, architectural distortions, and asymmetries 11 – 14 . DBT in standard views not only shows more detailed structures of lesions but also helps to localize one-view findings.…”

Section: Discussionmentioning

confidence: 99%

“…Since 1968, spot compression has been reported to aid FFDM in evaluating abnormalities or distinguishing real lesions from fake ones created by superimposed breast tissue 12 – 14 . It was a common method for further evaluation of suspicious lesions on FFDM.…”

Section: Introductionmentioning

confidence: 99%

An investigation of tomosynthesis on the diagnostic efficacy of spot compression mammography

Jiang,

Yang,

Qian

et al. 2024

Sci Rep

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To explore the diagnostic efficacy of tomosynthesis spot compression (TSC) compared with conventional spot compression (CSC) for ambiguous findings on full-field digital mammography (FFDM). In this retrospective study, 122 patients (including 108 patients with dense breasts) with ambiguous FFDM findings were imaged with both CSC and TSC. Two radiologists independently reviewed the images and evaluated lesions using the Breast Imaging Reporting and Data System. Pathology or at least a 1-year follow-up imaging was used as the reference standard. Diagnostic efficacies of CSC and TSC were compared, including area under the curve (AUC), accuracy, sensitivity, specificity, positive predictive value (PPV), and negative predictive value (NPV). The mean glandular dose was recorded and compared for TSC and CSC. Of the 122 patients, 63 had benign lesions and 59 had malignant lesions. For Reader 1, the following diagnostic efficacies of TSC were significantly higher than those of CSC: AUC (0.988 vs. 0.906, P = 0.001), accuracy (93.4% vs. 77.8%, P = 0.001), specificity (87.3% vs. 63.5%, P = 0.002), PPV (88.1% vs. 70.5%, P = 0.010), and NPV (100% vs. 90.9%, P = 0.029). For Reader 2, TSC showed higher AUC (0.949 vs. 0.909, P = 0.011) and accuracy (83.6% vs. 71.3%, P = 0.022) than CSC. The mean glandular dose of TSC was higher than that of CSC (1.85 ± 0.53 vs. 1.47 ± 0.58 mGy, P < 0.001) but remained within the safety limit. TSC provides better diagnostic efficacy with a slightly higher but tolerable radiation dose than CSC. Therefore, TSC may be a candidate modality for patients with ambiguous findings on FFDM.

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“…Furthermore, Faulk and Sickles found, in a study of the efficacy of spot compression-magnification and tangential views in the mammographic evaluation of palpable breast masses, that spot compression-magnification views depicted 97% of the masses; whereas, standard views depicted 87%. 7 Tangential views also depicted 87% of the masses with some of the masses that were detected in tangential views not being detected in the standard views and vice versa. In addition, they found that use of special views enabled radiologists to correctly predict benign or malignant status in 77% of cases as compared with correct prediction in 69% of cases with only standard views.…”

Section: Introductionmentioning

confidence: 99%

An observer study comparing spot imaging regions selected by radiologists and a computer for an automated stereo spot mammography technique

et al. 2004

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We are developing an automated stereo spot mammography technique for improved imaging of suspicious dense regions within digital mammograms. The technique entails the acquisition of a full-field digital mammogram, automated detection of a suspicious dense region within that mammogram by a computer aided detection (CAD) program, and acquisition of a stereo pair of images with automated collimation to the suspicious region. The latter stereo spot image is obtained within seconds of the original full-field mammogram, without releasing the compression paddle. The spot image is viewed on a stereo video display. A critical element of this technique is the automated detection of suspicious regions for spot imaging. We performed an observer study to compare the suspicious regions selected by radiologists with those selected by a CAD program developed at the University of Michigan. True regions of interest (TROIs) were separately determined by one of the radiologists who reviewed the original mammograms, biopsy images, and histology results. We compared the radiologist and computer-selected regions of interest (ROIs) to the TROIs. Both the radiologists and the computer were allowed to select up to 3 regions in each of 200 images (mixture of 100 CC and 100 MLO views). We computed overlap indices (the overlap index is defined as the ratio of the area of intersection to the area of interest) to quantify the agreement between the selected regions in each image. The averages of the largest overlap indices per image for the 5 radiologist-to-computer comparisons were directly related to the average number of regions per image traced by the radiologists (about 50% for 1 region/image, 84% for 2 regions/image and 96% for 3 regions/image). The average of the overlap indices with all of the TROIs was 73% for CAD and 76.8% +/- 10.0% for the radiologists. This study indicates that the CAD determined ROIs could potentially be useful for a screening technique that includes stereo spot mammography imaging.

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Efficacy of spot compression-magnification and tangential views in mammographic evaluation of palpable breast masses.

Cited by 27 publications

References 0 publications

Zooming method (× 2.0) of digital mammographyvsdigital magnification view (× 1.8) in full-field digital mammography for the diagnosis of microcalcifications

Zooming method (× 2.0) of digital mammographyvsdigital magnification view (× 1.8) in full-field digital mammography for the diagnosis of microcalcifications

An investigation of tomosynthesis on the diagnostic efficacy of spot compression mammography

An observer study comparing spot imaging regions selected by radiologists and a computer for an automated stereo spot mammography technique

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