Harald Seifarth
Harald Seifarth, M.D.

Assistant Professor – Expert in CTA, cardiac imaging

Curriculum vitae

All posts of Harald Seifarth, M.D.

Dual-Energy CT in the follow-up after endovascular abdominal aortic aneurysm repair

posted by Harald Seifarth, M.D. | Nov 24, 2014
Harald Seifarth, M.D.

A scan protocol consisting of virtual non-enhanced images as well as 80 kV images taken during the venous phase was found to be a reliable alternative method for diagnosing endoleaks, while reducing the radiation exposure by 62.45 %. Read more

Coronary stent imaging with dual-source CT: assessment of lumen visibility using different convolution kernels and postprocessing filters

posted by Harald Seifarth, M.D. | Aug 5, 2014
Harald Seifarth, M.D.

The postprocessing filter reduces image noise, however currently it does not offer an alternative to image reconstruction using the edge-enhancing kernels for the evaluation of the stent lumen. Read more

Advantages of cardiac scanning with DSCT and flash scanning

posted by Harald Seifarth, M.D. | May 25, 2010
Harald Seifarth, M.D.

The advantge of DSCT in cardiac imaging is the good temporal resolution. The temporal resolution of the Definition is 83 ms and in the Flash it is even 75 ms, providing good image quality at high heart rates (see paper). Read more

Case: Pulmonary Metastases

posted by Harald Seifarth, M.D. | Mar 29, 2010
Harald Seifarth, M.D.
  • Case: Pulmonary Metastases
  • Case: Pulmonary Metastases
  • Case: Pulmonary Metastases

Case history: Initial Diagnosis of Nephroblastoma. Diagnosis: CT shows 2 metastases in the left upper lobe. Description: Extremely short acquisition time with the High Pitch Mode (less than 1s) ensures depiction of pulmonary structures completely without motion artifacts. Read more

Case: Exclusion of Infiltrates

posted by Harald Seifarth, M.D. | Feb 22, 2010
Harald Seifarth, M.D.
  • Exclusion of Infiltrates 1
  • Exclusion of Infiltrates 2
  • Exclusion of Infiltrates 3

Case history: Child with nepphroblastoma before initiation of chemotherapy. Diagnosis: Exclusion of infiltrates Read more

Introduction of an individually optimized protocol for the injection of contrast medium for coronary CT angiography

posted by Harald Seifarth, M.D. | Nov 19, 2009
Harald Seifarth, M.D.

The aim of this study was to determine whether individually tailored protocols for the injection of contrast medium (CM) result in higher and more homogeneous vascular attenuation throughout the coronary arteries at coronary CT angiography compared with conventional injection protocols using fixed injection parameters. Read more

Automatic selection of optimal systolic and diastolic reconstruction windows for dual-source CT coronary angiography

posted by Harald Seifarth, M.D. | Apr 19, 2009
Harald Seifarth, M.D.

Abstract The aim of this study was to assess the performance of a motion-map algorithm that automatically determines optimal reconstruction windows for dual-source coronary CT angiography. In datasets from 50 consecutive patients, optimal systolic and diastolic reconstruction windows were determined using the motion-map algorithm. For manual determination of the optimal … Read more

Dual Source Dual Energy Recon Algorithm

posted by Harald Seifarth, M.D. | Jan 20, 2009
Harald Seifarth, M.D.

Naser Ahmadi, MD, USA, has sent the following question: Dual Source Dual Energy Recon Algorithm: I would like to know the reconstruction algorithm of dual energy dual source (Siemens-Definition). I know that peripendicular detectors of dual source empower Siemens CT scanner to capture/reconstruct images without (minimal) step artifact which is actually … Read more

Optimal Systolic and Diastolic Reconstruction windows for Coronary CT Angiography using Dual Source CT

posted by Harald Seifarth, M.D. | Nov 30, 2007
Harald Seifarth, M.D.

Abstract Objective: The purpose of this study was to determine the position of the optimal systolic and diastolic reconstruction interval for coronary CT angiography using Dual-Source-CT (DSCT). Materials and methods: In 90 patients, coronary DSCT angiography was performed without a prescan administration of beta blocking agents. Data were reconstructed in 5 % … Read more

Protocol Vascular: Brain Perfusion

posted by Harald Seifarth, M.D. | Nov 21, 2007
Harald Seifarth, M.D.

Please, click on the title to see the protocol. Read more

Brain perfusion

posted by Harald Seifarth, M.D. | Nov 19, 2007

In Stroke CT it is still a challenge to define the whole extent of ischemia. The calculation of “perfused blood volume” maps allows to display the perfusion of the entire brain in a 3-dimensional manner. Requirements of advanced neuroimaging   Fast and reliable diagnosis is essential in patients … Read more

Case: PBV delineates the whole volume of cerebral infarction in hyperacute phase

posted by Harald Seifarth, M.D. | Nov 16, 2007
Harald Seifarth, M.D.

Case History An 80-year-old male patient is presenting with left sided hemiparesis and neglect; onset 2 hours ago Questions Exclusion of intracerebral hemorrhage. Demarcation of ischemic brain tissue, location and extent of cerebral infarction Diagnosis / Differential diagnosis The patient suffered from a right sided ischemic infarction following thrombembolic occlusion of a M2 branch of … Read more




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