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Handheld Ultrasound Device (handheld + ultrasound_device)

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Medical Sciences100%

Selected Abstracts

Handheld ultrasound device for detection of non-opaque and semi-opaque foreign bodies in soft tissues,

JOURNAL OF CLINICAL ULTRASOUND, Issue 4 2003
Angela D. Levy MD
Abstract Purpose The aim of this study was to determine whether a portable handheld ultrasound device can be used to visualize non-opaque and semi-opaque foreign bodies in soft tissues and to characterize their sonographic appearance. Methods Twenty-two fragments composed of various natural and man-made materials and ranging from 4 to 20 mm in the maximum longitudinal dimension were embedded into 2 thawed turkey breasts. Two sonographers who were unaware of the number, dimensions, and locations of the fragments used a handheld ultrasound device to detect and characterize the fragments on the basis of their surface echogenicity and acoustic shadowing. The sonographic appearance of each fragment was compared with its actual characteristics. Results All 22 embedded fragments were successfully identified and localized on sonography. Surface echogenicity and acoustic shadowing varied among the fragments. For some fragments, the sonographically measured maximum longitudinal dimension differed substantially from the actual dimension. Conclusions Use of a portable handheld ultrasound device is effective for the detection of foreign bodies with a diameter greater than 4 mm in soft tissues. The sonographic appearances of non-opaque and semi-opaque foreign bodies vary in their patterns of surface echogenicity and acoustic shadowing. © 2003 Wiley Periodicals, Inc. J Clin Ultrasound 31:183,188, 2003 [source]

Diagnostic Accuracy of Handheld Echocardiography for Evaluation of Aortic Stenosis

ECHOCARDIOGRAPHY, Issue 5 2010
Arnd Schaefer M.D.
Background: Symptomatic severe aortic stenosis is associated with increased mortality and morbidity. Early identification of these patients by echocardiography is crucial. We conducted this study to evaluate a handheld ultrasound device (HCU) in patients with suspected severe aortic stenosis (AS) in comparison to a standard echocardiography device (SE). Methods: A HCU (Vivid I; GE Healthcare) and a SE device (Philips iE 33) were used to evaluate 50 consecutive patients with suspected severe AS. Two consecutive echocardiographic studies were performed by two experienced and blinded examiners using HCU and SE device. AS was graded by mean transaortic pressure, aortic valve area (AVA), and indexed AVA (AVA adjusted for body surface area). Results: Mean difference for mean transaortic gradient, AVA and indexed AVA for the SE and HCU device were 1.28 mmHg (,0.70 to 3.26 mmHg), ,0.02 cm2 (,0.06 to 0.01 cm2), and ,0.01 cm2/m2 (,0.03 to 0.01 cm2/m2), respectively. Discrepancies between both devices were not associated with misinterpretation of the degree of AS. Conclusion: Our study demonstrates that HCU can be used to evaluate patients with suspected AS. (ECHOCARDIOGRAPHY 2010;27:481-486) [source]

Handheld ultrasound device for detection of non-opaque and semi-opaque foreign bodies in soft tissues,

JOURNAL OF CLINICAL ULTRASOUND, Issue 4 2003
Angela D. Levy MD
Abstract Purpose The aim of this study was to determine whether a portable handheld ultrasound device can be used to visualize non-opaque and semi-opaque foreign bodies in soft tissues and to characterize their sonographic appearance. Methods Twenty-two fragments composed of various natural and man-made materials and ranging from 4 to 20 mm in the maximum longitudinal dimension were embedded into 2 thawed turkey breasts. Two sonographers who were unaware of the number, dimensions, and locations of the fragments used a handheld ultrasound device to detect and characterize the fragments on the basis of their surface echogenicity and acoustic shadowing. The sonographic appearance of each fragment was compared with its actual characteristics. Results All 22 embedded fragments were successfully identified and localized on sonography. Surface echogenicity and acoustic shadowing varied among the fragments. For some fragments, the sonographically measured maximum longitudinal dimension differed substantially from the actual dimension. Conclusions Use of a portable handheld ultrasound device is effective for the detection of foreign bodies with a diameter greater than 4 mm in soft tissues. The sonographic appearances of non-opaque and semi-opaque foreign bodies vary in their patterns of surface echogenicity and acoustic shadowing. © 2003 Wiley Periodicals, Inc. J Clin Ultrasound 31:183,188, 2003 [source]