21 Result(s)

Chapter

Ca²⁺ Signaling in Drosophila Photoreceptor Cells

In Drosophila photoreceptor cells, Ca²⁺ exerts regulatory functions that control the shape, duration, and amplitude of the light response. Ca²⁺ also orchestrates light adaptation allowing Drosophila to see in lig...

Olaf Voolstra, Armin Huber in Calcium Signaling (2020)

Article

Dose response of the intravascular contrast agent gadofosveset trisodium in MR perfusion imaging of the myocardium using a quantitative evaluation

This study was performed to determine the best concentration of gadofosveset at 1.5 and 3 T MRI for quantitative myocardial perfusion analysis. 18 healthy volunteers have been examined at a 1.5 and a 3 T MRI s...

Sebastian Niedermayer, Steven Sourbron… in The International Journal of Cardiovascula… (2013)

Article

A novel double cryoballoon strategy in persistent atrial fibrillation: a pilot study

Cryoballoon technology is a promising technique in paroxysmal atrial fibrillation (AF) ablation. However, success rates in patients with persistent AF have not been convincing. There is a trend toward performi...

Martin Schmidt, Uwe Dorwarth, Florian Straube… in Clinical Research in Cardiology (2012)

Article

Order of CT stroke protocol (CTA before or after CTP): impact on image quality

The purpose of this study was to determine the appropriate order of CT angiography and CT perfusion in a multimodal stroke CT protocol.

Franziska Dorn, Thomas Liebig, Daniela Muenzel, Reinhard Meier… in Neuroradiology (2012)

Article

Targeted dual-energy single-source CT for characterisation of urinary calculi: experimental and clinical experience

To assess the accuracy of targeted dual-energy single-source multi-detector CT (MDCT) for characterisation of urinary calculi.

Matthias Eiber, Konstantin Holzapfel, Markus Frimberger… in European Radiology (2012)

Article

MRI for detection of anomalous pulmonary venous drainage in patients with sinus venosus atrial septal defects

Purpose of this survey was to estimate the value of MRI for the assessment of the anatomical and functional features of sinus venosus atrial septal defect (SVD). This prospective study included 13 surgically p...

Maria Prompona, Olaf Muehling… in The International Journal of Cardiovascula… (2011)

Chapter

Regulation of TRP Signalling by Ion Channel Translocation Between Cell Compartments

The TRP (transient receptor potential) family of ion channels is a heterogeneous family of calcium permeable cation channels that is subdivided into seven subfamilies: TRPC (“Canonical”), TRPV (“Vanilloid”), T...

Alexander C. Cerny, Armin Huber in Transient Receptor Potential Channels (2011)

Chapter

INAD Signaling Complex of Drosophila Photoreceptors

Armin Huber, Nina E. Meyer in Visual Transduction and Non-Visual Light Perception (2008)

Chapter

Thorax and Vasculature

While MRI is an imaging method of first choice in almost all parts of the human body its acceptance for thoracic imaging is rather low even today. One of the reasons is of course that CT has developed dramatic...

Günter Layer, Hans-Ulrich Kauczor, Elizabeth A. Morris… in Magnetic Resonance Tomography (2008)

Article

Myocardial tagging with steady state free precession techniques and semi-automatic postprocessing—impact on diagnostic value

Our aim was to determine the diagnostic value of myocardial tagging sequences with regard to the evaluable share of the cardiac cycle. Thirty-three patients were examined at 1.5 T using tagging sequences with ...

Thorsten R. C. Johnson, Nicole Bayrhof, Armin Huber… in European Radiology (2007)

Article

Dual breath-hold magnetic resonance cine evaluation of global and regional cardiac function

The purpose of our study was to evaluate the accuracy of a multislice cine magnetic resonance imaging (MRI) technique with parallel imaging in regard to global and regional left ventricular function. Forty-two...

Bernd J. Wintersperger, Spencer Sincleair, Val M. Runge… in European Radiology (2007)

Article

Code blue in the MR suite – a drill to rescue a patients with cardiac arrest from the MR scanner

Dobutamine stress MR (DSMR) is increasingly used in the clinical routine. Due to the limitations inherent to MR, i.e. the distance of the personnel to the patient during imaging, it is necessary to set up an e...

Olaf M. Muehling, Armin Huber… in The International Journal of Cardiovascula… (2006)

Article

Optimization of ex vivo CT- and MR- Imaging of Atherosclerotic Vessel Wall Changes

Objective: To optimize a methodology for ex vivo imaging of atherosclerotic vessel wall changes using multidetector-row computed tomography (MDCT) and multi-contrast magnetic resonance imaging (MRI).Methods: In ...

Konstantin Nikolaou, Christoph R. Becker… in The International Journal of Cardiovascula… (2004)

Article

Intraindividual comparison of contrast-enhanced electron-beam computed tomography and navigator-echo-based magnetic resonance imaging for noninvasive coronary artery angiography

The aim of this study was to compare contrast-enhanced electron-beam computed tomography (EBCT) and navigator-echo-based MRI of the coronary arteries in the same patient population. Both methods were assessed...

Konstantin Nikolaou, Armin Huber, Andreas Knez, Christoph Becker… in European Radiology (2002)

Article

The PDZ assembled “transducisome” of microvillar photoreceptors: the TRP/TRPL problem

Two types of ion channels, TRP and TRPL, are activated upon light-absorption in rhabdomeral photoreceptor membranes of fly compound eyes. Whereas TRP is associated with other signaling proteins into a multipro...

Reinhard Paulsen, Monika Bähner, Armin Huber in Pflügers Archiv - European Journal of Phys… (2000)

Article

Myokardperfusion in Ruhe und unter Belastung

Bernd J. Wintersperger, Herbert V. Penzkofer, Andreas Knez, Armin Huber… in Der Radiologe (2000)

Article

The PDZ assembled "transducisome" of microvillar photoreceptors: the TRP/TRPL problem

Two types of ion channels, TRP and TRPL, are activated upon light-absorption in rhabdomeral photo-receptor membranes of fly compound eyes. Whereas TRP is associated with other signaling proteins into a multip...

Reinhard Paulsen, Monika Bähner, Armin Huber in Pflügers Archiv (2000)

Chapter

Regulation of Rhodopsin Expression in Rhabdomeral Photoreceptors

Regulation of rhodopsin synthesis may occur at any of the biochemical steps required to transform the genetic information encoded in the opsin genes into the light-absorbing visual pigment, rhodopsin, containe...

Armin Huber, Reinhard Paulsen in Photostasis and Related Phenomena (1998)

Article

Myographische Studien bei Paralysis agitans

Armin Huber in Archiv für pathologische Anatomie und Physiologie und für klinische Medicin (1887)