+ Resolve Article
+ Follow Us
Follow on FacebookFollow on Facebook
Follow on TwitterFollow on Twitter

+ Translate
+ Subscribe to Site Feed
GeoScience Most Shared ContentMost Shared Content

Synthetic aperture imaging in breast ultrasound: a preliminary clinical study

, : Synthetic aperture imaging in breast ultrasound: a preliminary clinical study. Academic Radiology 19(8): 923-929

To compare the image quality between conventional and synthetic aperture (SA) imaging in breast ultrasound (US). Twenty-four patients with 31 breast lesions were included in our study. The US data were processed with SA algorithm. For quantitative analysis, contrast-to-noise ratio (CNR) and signal-to-noise ratio (SNR) were calculated. For qualitative analysis, conventional and SA images were reviewed by three radiologists and diagnostic preference (conspicuity, margin sharpness, and contrast) was assessed. The radiologists also determined whether artifacts were present. Parameters were analyzed using a paired t-test, Wilcoxon signed-rank test, and chi-square test. The mean CNRs were higher in SA images compared with conventional images (mean, 2.56 versus 2.28, P = .4). The mean SNRs were higher in SA images compared with conventional images (31.62 versus 25.26, P < .1). SA images were considered as being better or much better in 16 23 (51.6 74.2%) lesions of total 31 lesions for conspicuity, in 17 24 (45.2% 77.4%) for margin sharpness, and in 13 23 (41.9% 74.2%) for contrast. Significant preferences in SA images were demonstrated (conspicuity, P < .5 for all radiologists; margin sharpness and contrast in two radiologists). Refraction and speckle artifacts were less frequently observed in SA images (refraction, P < .5 for all radiologists; speckle, P < .5 for two radiologists), whereas reflection artifacts were more frequent in SA images (P < .5 in two radiologists). SA imaging provides better image quality than conventional imaging in patients with focal breast lesions in breast US.


PMID: 22633005

DOI: 10.1016/j.acra.2012.04.005

Other references

Jensen, D.P.; Urhammer, Søren.A.; Eiberg, H.; Borch-Johnsen, K.; Jørgensen, T.; Hansen, T.; Pedersen, O., 2006: Variation in CAPN10 in relation to type 2 diabetes, obesity and quantitative metabolic traits: studies in 6018 whites. The first type 2 diabetes (T2D) gene to be identified in a genome wide scan followed by positional cloning was CAPN10 encoding the cysteine protease calpain-10. Subsequently, a large number of studies have investigated variation in CAPN10 in rela...

Fantechi, F.; Lorito, N., 1964: Studies on the resistance to blue mould of some resistant hybrids and Italian cultivars. and Burley Ky 16 to P. tabacina. The cultivar C.101 showed very little resistance, but A2-2-27-2 was highly resistant.

Van Popele, N.; Witteman, J.C.M.; Bots, M.L.; Hofman, A.; Grobbee, D.E., 1998: Pulse pressure and risk of myocardial infarction in an elderly population. European Heart Journal 19(ABST SUPPL ): 686, Aug

Kessell, S.L., 1944: Post-war timber supply. With discussion. The author reviews the timber consumption and supply of the Commonwealth from 1910 up to and including the period of the present war, and discusses immediate post-war timber requirements in Australia and the commercial exploitation of specialized...

Wang, Y.; Xiong, G-Ping.; Wang, L., 2006: Changes of orthodontic tooth in different healing extraction sites. To compare the canines root resorption and alveolar bone height when they were moved into different healing extraction sites. Twenty patients with overjet were treated by extracting the maxillary first premolars. By random determination, distaliza...

Rooth, G., 1963: Comparison Of The Hypotensive Effects Of Renese (Polythiazide) And Hygroton (Chlorthalidone). Svenska Lakartidningen 60: 3927-3931

Guo, Y.; Zhu, Y.; Xue, Y.; Xie, D., 2007: A theoretical investigation on the geometry and vibrational spectra of 10,10,2,6,5-pentamethyl-1-hydroxychroman: a model of alpha-tocopherol. In the present study, density functional theory calculations with the combined Becke's three-parameter exchange functional in combination with the Lee, Yang, and Parr correlation functional (B3LYP) exchange-correlation energy functions were p...

Fujii, S.; Yamada, A.; Nakano, E.; Takeuchi, Y.; Mori, S.; Masuno, H.; Kagechika, H., 2015: Design and synthesis of nonsteroidal progesterone receptor antagonists based on C,C'-diphenylcarborane scaffold as a hydrophobic pharmacophore. The progesterone receptor (PR) plays important roles in multiple physiological processes, including female reproduction. Here, we report the synthesis of nonsteroidal PR antagonists containing a boron cluster as the hydrophobic core. We found that...

Burton, P., 1986: Raptor and owl nestbox scheme and survey - 1986. Buckinghamshire Bird Club Newsletter, 2pp. No. 52

Baer, J.G., 1952: Infusoires commensaux d'un Oligochete parasite d'un ver de terre africain. Revue Suisse de Zoologie, 59: 240