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Article
Comprehensive morphologic and functional imaging of heart transplant patients: first experience with dynamic perfusion CT
We aimed to assess the diagnostic performance of a combined protocol with coronary computed tomography angiography (CCTA) and stress CT perfusion imaging (CTP) in heart transplant patients for comprehensive mo...
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Article
The role of dual energy CT in differentiating between brain haemorrhage and contrast medium after mechanical revascularisation in acute ischaemic stroke
To assess the feasibility of dual energy computed tomography (DE-CT) in intra-arterially treated acute ischaemic stroke patients to discriminate between contrast extravasation and intracerebral haemorrhage.
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Article
CT perfusion technique for assessment of early kidney allograft dysfunction: preliminary results
To assess the benefit of quantitative computed tomography (CT) perfusion for differentiating acute tubular necrosis (ATN) and acute rejection (AR) in kidney allografts.
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Article
Current status and guidelines for the assessment of tumour vascular support with dynamic contrast-enhanced computed tomography
Dynamic contrast-enhanced computed tomography (DCE-CT) assesses the vascular support of tumours through analysis of temporal changes in attenuation in blood vessels and tissues during a rapid series of images ...
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Article
Elektrische Nervenstimulation für Plexus- und Nervenblockaden
Trotz der zunehmenden Anwendung des Ultraschalls repräsentiert die elektrische Nervenstimulation derzeit wahrscheinlich noch den quantitativ überwiegenden Standard bei der Durchführung von Plexusanästhesien un...
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Article
Clinical evaluation of bone-subtraction CT angiography (BSCTA) in head and neck imaging
Fifty-one patients were examined with bone subtraction CT angiography (BSCTA). Data were acquired on 4-and 64-slice spiral CT systems. The post-processing method is based on fully automatic registration of non...
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Article
Multimodale Computertomographie beim akuten Hirninfarkt
Die Computertomographie (CT) ist als Standardmethode in der Akutdiagnostik des Schlaganfalls etabliert. Die Nativaufnahme kann eine Blutung ausschließen und dem geübten Untersucher Frühzeichen einer Ischämie a...
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Article
Reproducibility of coronary calcium quantification in repeat examinations with retrospectively ECG-gated multisection spiral CT
High reproducibility is a key requirement for coronary calcium scoring in follow-up examinations. We investigated the inter-examination reproducibility of calcium scoring with retrospectively ECG-gated multis...
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Chapter and Conference Paper
Determination of Regional Brain Perfusion by Functional CT
Due to the increasing recognition that noninvasive measurements of cerebral blood flow (CBF) parameters may play a major role in the clinical management of patients with neurological disorders, a variety of fu...
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Chapter
Somatic Hypermutation of Immunoglobulin Genes is Linked to Transcription
Immunoglobulin (Ig) genes are rearranged in pre-B cells. Pre-B cells that express Ig heavy (H) and light (L) chain genes whose V(D)J recombination results in a functional reading frame mature into B cells that...
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Chapter and Conference Paper
Digital TomoSynthesis (DTS) with a Conventional X-Ray System
Today, film tomography is still useful in many settings because of its easy availability, high spatial resolution, and short examination time. A disadvantage is that only one image can be acquired from a selec...
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Chapter and Conference Paper
Quantifizierung von Knochenreaktionen des Femurs nach Hüftendoprothesen
Ein künstlicher Hüftgelenkersatz ist inzwischen bei Patienten mit Arthrose oder Arthritis zur Routine geworden. Der Langzeiterfolg dieser Maßnahme hängt zum Teil von technischen Faktoren (Prothesenmaterial, Pr...
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Chapter
Rearrangement and Expression of Immunoglobulin Genes in Transgenic Mice
Transgenic mice are discussed which carry a rearrangment test transgene. The methylation status of the transgene varies, depending on the background mouse strain. When the transgene is bred into the C57BL/6 st...
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Chapter and Conference Paper
3D Reconstruction of Vascular Structures from few X-Ray Projections
A number of techniques for the reconstruction of slice images from a set of projections taken under different angles have been proposed. The most frequently used ‘backprojection’ method produces artefacts in t...
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Chapter and Conference Paper
A new Method for Assessing the Anchorage of Custom-Made Hip Endoprostheses with CT
Metal artefacts in CT disturb a reliable visualisation and a quantitative assessment of the bone-implant interface. By using an extended CT-scale in a modified reconstruction technique the full implant geometr...
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Article
Real-time distortion correction of digital X-ray II/TV-systems: an application example for Digital Flashing Tomosynthesis (DFTS)
In X-ray image intensifier (II)/TV-camera systems geometric distortions occur, e.g. due to the curved input screen of the II. For methods which are based on a pixelwise comparison of images, e.g. digital angio...
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Article
Digital Flashing Tomosynthesis (DFTS) — A technique for three-dimensional coronary angiography
Digital Flashing Tomosynthesis (DFTS) represents a technique for three-dimensional (3D) coronary angiography. Four ECG-gated simultaneously flashed X-ray tubes generate a multiperspective digital substraction ...
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Chapter and Conference Paper
Three-Dimensional Coronary Angiography with Digital Flashing Tomosynthesis
Tomosynthesis presents a simple procedure for angiography because the recording step requires only one injection of contrast medium. Digital flashing tomosynthesis (DFTS) is based on a new nonlinear reconstruc...
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Chapter and Conference Paper
Synthetische Vielfach-Stereobilderzeugung aus Subtraktionsangiographieaufnahmen
Der Vorteil von Tomosynthese Verfahren [1,2,3,4] gegenüber anderen Methoden besteht darin, daß die 3-dimensionale Information über ein Objekt aus einer einzigen Aufnahme gewonnen werden kann. Deshalb sind dies...
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Chapter and Conference Paper
Digitale Subtraktions Angiographie Mit Einer Synthetischen Maske Aus Einer Bildfolge Von Herzaufnahmen
Bei der Digitalen Subtraktions Angiographie (DSA) wird zur Anhebung des Kontrastes der Hintergrund subtrahiert. Die Subtraktions-Maske wird vor oder nach Kontrastmittelinjektion in das Gefäßsystem gewonnen. Di...
