Out-of-Plane Artifact Reduction in Tomosynthesis Based on Regression Modeling and Outlier Detection

Abdurahman, Shiras; Jerebko, Anna K.; Mertelmeier, Thomas; Lasser, Tobias; Navab, Nassir

doi:10.1007/978-3-642-31271-7_94

Cited by 17 publications

(12 citation statements)

References 4 publications

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“…44,45 The methods are based on the determination of which projection images will contribute to the introduction of artifacts to a voxel and rejecting these projection images in the reconstruction of that voxel. For example, Wu et al 45 projection images.…”

Section: Discussionmentioning

confidence: 99%

“…Concerning the effect of the ripple artifact on the quality of tomosynthesis images, methods have previously been proposed for reduction of artifacts caused by calcifications and metal objects in the case of breast tomosynthesis. 44,45 The methods are based on the determination of which projection images will contribute to the introduction of artifacts to a voxel and rejecting these projection images in the reconstruction of that voxel. For example, Wu et al 45 have presented a technique where sources of ripple artifacts are identified by segmentation of high contrast structures in the F.…”

Section: Discussionmentioning

confidence: 99%

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Image quality dependency on system configuration and tube voltage in chest tomosynthesis—A visual grading study using an anthropomorphic chest phantom

et al. 2015

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At the standard dose level of the VolumeRAD system, the potential benefits from increasing the dose per projection do not fully compensate for the negative effects resulting from a reduction in the number of projection images. Consequently, the default configuration consisting of 60 projection images acquired over 30° is a good alternative. The tube voltage used in tomosynthesis does not have a large impact on the image quality.

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Section: Discussionmentioning

confidence: 99%

Section: Discussionmentioning

confidence: 99%

Image quality dependency on system configuration and tube voltage in chest tomosynthesis—A visual grading study using an anthropomorphic chest phantom

et al. 2015

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“…Selecting the MIP will instead increase visibility of micro-calcifications while also increasing the noise level. For this study, it was decided that the MIP and AIP approaches would both be appopriate, created either by importing and slabbing BT-volumes using Matlab (Mathworks, Natick, MA) or by employing Siemens prototype system with a built-in option of reconstruction based on statistical artifact reduction and superresolution, which dispenses with the slice-thickness filter and instead reconstructs slices with a thickness of 1/6 th mm and combines them into slabs of the desired thickness 6 . This method was not available during the initial phase of the study.…”

Section: Slabbingmentioning

confidence: 99%

A study of the feasibility of using slabbing to reduce tomosynthesis review time

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Andersson

Förnvik

et al. 2013

Medical Imaging 2013: Image Perception, Observer Performance, and Technology Assessment

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This study aimed to investigate whether decreasing the amount of slices in breast tomosynthesis (BT) image volumes reduce reading time. BT slices were combined into so-called slabs, by reconstructing thin slices and merging them into thicker slabs. Sets of slabs where created from 35 clinical BT volumes with malignant or benignant findings and from 50 BT volumes drawn from screening sets (without any prior review). The image sets were reviewed in two separate sessions while the review time was recorded. A total of five experienced radiologists were employed for the image review.Additionally a VGA study was performed to compare slabbed images with the originals in order to ensure that the image quality was not significantly degraded. One set of 27 pathological cases (13 masses and 14 microcalcification clusters) and one of 22 subtle lesions that had been missed on digital mammography but detected on BT were presented to an experienced radiologist and 2 medical physicists who rated the quality of the slabbed versions relative to the originals.The study could find no significant degradation in image quality when using 2 mm slabs instead of 1 mm slices. There was no significant decrease in reading time on clinical cases (P = .133), but on screening images there was a significant decrease of 7.7 ± 9.6 s from an average level of 32.2 ± 14.5 s (P < .0001). This suggests that increasing slab thickness can reduce the time radiologists spend studying normal images by 20%.

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“…The 24 cases were reconstructed with 2 mm (which is the proposed standard slice image thickness [12] ), 6 mm and 10 mm slab thickness, all presented with 1 mm overlap. The images were reconstructed using super-resolution reconstruction with statistical artifact reduction [13,14] (SRSAR) followed by slabbing with averageintensity-projection (AIP) technique. The reconstruction software was provided by the system manufacturer (Siemens Healthcare, Erlangen, Germany).…”

Section: Methodsmentioning

confidence: 99%

Evaluation of the possibility to use thick slabs of reconstructed outer breast tomosynthesis slice images

et al. 2016

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The large image volumes in breast tomosynthesis (BT) have led to large amounts of data and a heavy workload for breast radiologists. The number of slice images can be decreased by combining adjacent image planes (slabbing) but the decrease in depth resolution can considerably affect the detection of lesions. The aim of this work was to assess if thicker slabbing of the outer slice images (where lesions seldom are present) could be a viable alternative in order to reduce the number of slice images in BT image volumes.The suggested slabbing (an image volume with thick outer slabs and thin slices between) were evaluated in two steps. Firstly, a survey of the depth of 65 cancer lesions within the breast was performed to estimate how many lesions would be affected by outer slabs of different thicknesses. Secondly, a selection of 24 lesions was reconstructed with 2, 6 and 10 mm slab thickness to evaluate how the appearance of lesions located in the thicker slabs would be affected.The results show that few malignant breast lesions are located at a depth less than 10 mm from the surface (especially for breast thicknesses of 50 mm and above). Reconstruction of BT volumes with 6 mm slab thickness yields an image quality that is sufficient for lesion detection for a majority of the investigated cases. Together, this indicates that thicker slabbing of the outer slice images is a promising option in order to reduce the number of slice images in BT image volumes.

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Out-of-Plane Artifact Reduction in Tomosynthesis Based on Regression Modeling and Outlier Detection

Cited by 17 publications

References 4 publications

Image quality dependency on system configuration and tube voltage in chest tomosynthesis—A visual grading study using an anthropomorphic chest phantom

Image quality dependency on system configuration and tube voltage in chest tomosynthesis—A visual grading study using an anthropomorphic chest phantom

A study of the feasibility of using slabbing to reduce tomosynthesis review time

Evaluation of the possibility to use thick slabs of reconstructed outer breast tomosynthesis slice images

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