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Comparative Study
. 2019 Jul;25(4):265-269.
doi: 10.5152/dir.2019.18167.

Supplementary abbreviated supine breast MRI following a standard prone breast MRI with single contrast administration: is it effective in detecting the initial contrast-enhancing lesions?

Erkin Arıbal  1 , Onur Buğdaycı  1
Affiliations
Comparative Study

Supplementary abbreviated supine breast MRI following a standard prone breast MRI with single contrast administration: is it effective in detecting the initial contrast-enhancing lesions?

Erkin Arıbal et al. Diagn Interv Radiol. 2019 Jul.

Abstract

Purpose: We aimed to evaluate the detectability of contrast enhancing lesions, initially demonstrated in standard prone dynamic contrast-enhanced MRI (DCE-MRI), in a supplementary supine breast MRI examination performed following the standard prone DCE-MRI examination and to show the correlation of spatial displacement of the lesions with breast size and density.

Methods: Forty-two patients with 45 lesions were prospectively evaluated. Supine breast MRI was acquired with a 6-channel body coil following a standard DCE-MRI in prone position after repositioning the patient. No additional contrast media was administered. Images were evaluated by two radiologists in consensus for the visibility of the lesions. Lesion localization relative to the sternal midline, chest wall and nipple was measured in both prone and supine positions. Correlations between lesion displacement and breast size or breast density were analyzed.

Results: Of 45 lesions, 23 (52.3%) were masses, 22 (47.7%) were nonmass enhancements (NME). Forty-four lesions (97.8%) could be detected on supine images. One linear NME of 33 mm in length could not be seen on supine images. Twenty (46.5%) of the detected lesions in supine position were equal to or smaller than 10 mm (11 NME [55%] and 9 masses [45%]). Lesion displacement relative to the chest wall increased with increasing breast size (P < 0.001).

Conclusion: An abbreviated supine sequence following a standard prone DCE-MRI with single contrast media administration is an effective method for defining the lesion location in supine position.

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Conflict of interest statement

Conflict of interest disclosure

The authors declared no conflicts of interest.

Figures

Figure 1. a–f
Figure 1. a–f
A 54-year-old woman with invasive ductal carcinoma. Lesion displacement measurements in prone (a, c, e) and supine (b, d, f) images. The distance of the lesion to the sternum (a, b), chest wall (c, d), and the nipple (e, f) were measured. Sagittal oblique reformatted images (e, f) show the lesion and nipple in the same plane.
Figure 2. a, b
Figure 2. a, b
A 56-year-old woman with ductal carcinoma in situ. The only lesion not seen in supine images was a linear NME of 33 mm in length. Linear NME in the left breast (circled) seen in prone image (a). The lesion could not be seen in supine images (b).
Figure 3
Figure 3
Scatterplot showing the association between breast area and lesion displacement relative to the chest wall.
See this image and copyright information in PMC

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