Evaluating thin compression paddles for mammographically compatible ultrasound.

Evaluating thin compression paddles for mammographically compatible ultrasound. Research Abstract Details 

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Evaluating thin compression paddles for mammographically compatible ultrasound. Abstract Text:

Rebecca C Booi,Jochen F ,Mitchell M Goodsitt,Matthew O'Donnell,Ajay Kapur,Gerald L LeCarpentier,Marilyn A Roubidoux,J Brian Fowlkes,Paul L Carson,

We are developing a combined digital mammography/3D ultrasound system to improve detection and/or characterization of breast lesions. Ultrasound scanning through a mammographic paddle could significantly reduce signal level, degrade beam focusing and create reverberations. Thus, appropriate paddle choice is essential for accurate sonographic lesion detection and assessment with this system. In this study, we characterized ultrasound image quality through paddles of varying materials (lexan, polyurethane, TPX, mylar) and thicknesses (0.25 to 2.5 mm). Analytical experiments focused on lexan and TPX, which preliminary results demonstrated were most competitive. Spatial and contrast resolution, side-lobe and range lobe levels, contrast and signal strength were compared with no-paddle images. When the beamforming of the system was corrected to account for imaging through the paddle, the TPX 2.5 mm paddle performed the best. Test objects imaged through this paddle demonstrated < or = 15% reduction in spatial resolution, < or = 7.5 dB signal loss, < or = 3 dB contrast loss and range lobe levels > or = 35 dB below signal maximum over 4 cm. TPX paddles <2.5 mm could also be used with this system, depending on imaging goals. In 10 human subjects with cysts, small CNR losses were observed but were determined to be statistically insignificant. Radiologists concluded that 75% of cysts in through-paddle scans were at least as detectable as in their corresponding direct-contact scans.

Evaluating thin compression paddles for mammographically compatible ultrasound. Publishing Authors By Initials

RC Booi,JF ,MM Goodsitt,M O'Donnell,A Kapur,GL LeCarpentier,MA Roubidoux,JB Fowlkes,PL Carson,

For similar diagnosis: diagnostic techniques and procedures: diagnostic imaging: ultrasonography: ultrasonography, mammary research abstracts see: diagnosis: diagnostic techniques and procedures: diagnostic imaging: ultrasonography: ultrasonography, mammary research

PUBMED ID PMID:

MEDLINE DATE:

Evaluating thin compression paddles for mammographically compatible ultrasound. Journal Published:

PUBLICATION TYPE: Research Support, N.I.H., Extr

Journal: Ultrasound in medicine & biology

VOLUME: 33

Page Numbers: 472-82

Journal Abbreviation:

ISSN: 0301-5629

DAY: 3

MONTH: Mar

YEAR: 2007

Evaluating thin compression paddles for mammographically compatible ultrasound. Information

Number of References:

LANGUAGE: eng

NlmUniqueID: 410553

Evaluating thin compression paddles for mammographically compatible ultrasound. Keywords Mesh Terms:

KEYWORDS: Ultrasonography, Mammary

MESH TERMS: instrumentation

Chemical & Substance for Abstract: Evaluating thin compression paddles for mammographically compatible ultrasound. Information

Substance Name: Lavsan

Registry Number: 25038-59-9

Grant and Affiliation Information for Evaluating thin compression paddles for mammographically compatible ultrasound.

AFFILIATION: Department of Radiology, University of Michigan, Ann Arbor, MI, USA. rbooi@umich.edu

Country: England

AGENCY: United States NCI

GRANT: R01 CA091713-01A1

ACRONYM: CA

MEDLINETA: Ultrasound Med Biol

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