Search Results - "Ermert, H."

Development and evaluation of a high-frequency ultrasound-based system for in vivo strain imaging of the skin by Vogt, M., Ermert, H.

“…The elastic properties of skin are of great interest in dermatology because they are affected by many pathological conditions. In this paper, a technique for…”
Get full text

A time-efficient and accurate strain estimation concept for ultrasonic elastography using iterative phase zero estimation by Pesavento, A., Perrey, C., Krueger, M., Ermert, H.

“…In ultrasonic elastography, the exact estimation of temporal displacements between two signals is the key to estimating strain. An algorithm was previously…”
Get full text

A high-frequency ultrasound imaging system combining limited-angle spatial compounding and model-based synthetic aperture focusing by Opretzka, J., Vogt, M., Ermert, H.

“…High-frequency ultrasound (HFUS) imaging systems are routinely used for medical diagnostics (skin, eyes) and for medical research (small animal imaging)…”
Get full text

Limited-angle Spatial Compound Imaging of Skin with High-frequency Ultrasound (20 MHz) by Vogt, M., Ermert, H.

“…In dermatology, high-frequency ultrasound (HFUS) is used for high-resolution skin imaging. The conventional B-scan type approach is to perform lateral scans…”
Get full text

In Vivo Ultrasound Biomicroscopy of Skin: Spectral System Characteristics and Inverse Filtering Optimization by Vogt, M., Ermert, H.

“…High-frequency ultrasound (HFUS) in the 20 MHz to 100 MHz range has to meet the opposite requirements of good spatial resolution and of high penetration depth…”
Get full text

Ultrasonic microscanning by Vogt, M, Opretzka, J, Perrey, C, Ermert, H

“…A detailed review is given of the application of high-frequency ultrasound (HFUS) at frequencies of 20 MHz and above for high-resolution, cross-sectional…”
Get more information

Freehand ultrasound elastography of breast lesions: clinical results by Hiltawsky, K M, Krüger, M, Starke, C, Heuser, L, Ermert, H, Jensen, A

“…We developed a freehand method for ultrasound elastography, which can be applied during a routine sonographic examination with off-line calculation of strain…”
Get more information

A 100-MHz ultrasound imaging system for dermatologic and ophthalmologic diagnostics by Passmann, C., Ermert, H.

“…A major design problem concerning high-frequency broad-band ultrasound imaging systems is caused by the strong dispersive attenuation of the tissue, which…”
Get full text

Chirp signal matching and signal power optimization in pulse-echo mode ultrasonic nondestructive testing by Pollakowski, M., Ermert, H.

“…Chirp pulse compression is a signal correlation technique that uses frequency modulated pulses as transmitted signals. Usually, signals with linear frequency…”
Get full text

New real-time strain imaging concepts using diagnostic ultrasound by Pesavento, A, Lorenz, A, Siebers, S, Ermert, H

“…Two real-time strain imaging concepts and systems are presented. Both systems are based on a conventional ultrasound scanner that is connected to a PC with an…”
Get more information

Ultimate signal-to-noise-ratio of surface and body antennas for magnetic resonance imaging by Schnell, W., Renz, W., Vester, M., Ermert, H.

“…Approximating the human body by a homogeneous half-space or cylinder the electromagnetic fields of surface antennas or wholebody antennas for magnetic…”
Get full text

A method to expedite data acquisition for multiple spatial-temporal analyses of tissue perfusion by contrast-enhanced ultrasound by Hansen, C., Huttebrauker, N., Wilkening, W., Ermert, H.

“…For semiquantitative analyses of tissue perfusion using contrast-enhanced ultrasound the acquisition and processing of time intensity curves (TIC) is required…”
Get full text

An ultrasound research interface for a clinical system by Ashfaq, M., Brunke, S.S., Dahl, J.J., Ermert, H., Hansen, C., Insana, M.F.

“…Under a contract with the National Cancer Institute, we have developed a research interface to an ultrasound system. This ultrasound research interface (URI)…”
Get full text

Full angle spatial compounding for improved replenishment analyses in contrast perfusion imaging: In vitro studies by Hansen, C., Huttebrauker, N., Brunke, S., Ermert, H.

“…For contrast enhanced perfusion imaging semi-quantitative methods (such as the bolus-, replenishment- or depletion-method) are commonly used to analyze the…”
Get full text

Ultrasound computed tomography in breast imaging: first clinical results of a custom-made scanner by Hollenhorst, M, Hansen, C, Hüttebräuker, N, Schasse, A, Heuser, L, Ermert, H, Schulte-Altedorneburg, G

“…To test a system using ultrasound computed tomography (USCT) that superimposes ultrasound data acquired in one cross-sectional plane from multiple angles…”
Get more information

Diagnostic ultrasound by Ermert, H

Get more information

The Ruhr Center of Competence for Medical Enginnering (Kompetenzzentrum Medizintechnik Ruhr KMR, Bochum) by Ermert, H

“…The profile and the projects of the Ruhr-Center of Competence for Medical Engineering at the Ruhr-University Bochum (Germany) will be described. Main topic of…”
Get more information

Tissue-characterization of the prostate using radio frequency ultrasonic signals by Schmitz, G., Ermert, H., Senge, T.

“…In this paper, we will present a complete method and system for the detection of prostatic carcinoma, providing color-coded images of the estimated probability…”
Get full text

Ultrasound synthetic aperture imaging: monostatic approach by Ylitalo, J.T., Ermert, H.

“…An ultrasound synthetic aperture imaging method based on a monostatic approach was studied experimentally. The proposed synthetic aperture method offers good…”
Get full text

Comparison of high frequency ultrasound and optical coherence tomography as modalities for high resolution and non invasive skin imaging by Vogt, M, Knüttel, A, Hoffmann, K, Altmeyer, P, Ermert, H

“…High frequency ultrasound (HFUS) and optical coherence tomography (OCT) are techniques for high resolution imaging of tissues. The penetration depth of these…”
Get more information