Martin Heuschmid
Martin Heuschmid, M.D.

Professor of radiology – Expert in CTA, cardiac imaging, CT oncology

Curriculum vitae

All posts of Martin Heuschmid, M.D.

Estimation of radiation exposure of different dose saving techniques in 128-slice CT coronary angiography

posted by Martin Heuschmid, M.D. | Nov 15, 2012
Martin Heuschmid, M.D.

To estimate the effective dose of cardiac CT with different dose saving strategies dependent on varying heart rates. Read more

Automated CT dose-saving algorithm to protect radiosensitive tissues: estimation of radiation exposure and image quality considerations.

posted by Martin Heuschmid, M.D. | Oct 29, 2012
Martin Heuschmid, M.D.

To evaluate radiation exposure and image quality in thoracic computed tomography (CT) using a new dose-saving algorithm to protect radiosensitive organs. Read more

CT angiography of various superficial femoral artery stents: An in vitro phantom study

posted by Martin Heuschmid, M.D. | Oct 16, 2012
Martin Heuschmid, M.D.

To evaluate CT reconstruction parameters to improve stent lumen visualization in vitro. Read more

Iterative reconstruction in head CT: image quality of routine and low-dose protocols in comparison with standard filtered back-projection.

posted by Martin Heuschmid, M.D. | Sep 25, 2012
Martin Heuschmid, M.D.

The purpose of our study was to assess the potential benefit of IR in head CT by comparing objective and subjective image quality with standard FBP at various dose levels. Read more

Virtual Nonenhanced Dual-Energy CT Urography with Tin-Filter Technology: Determinants of Detection of Urinary Calculi in the Renal Collecting System.

posted by Martin Heuschmid, M.D. | Sep 10, 2012
Martin Heuschmid, M.D.

To retrospectively determine which features of urinary calculi are associated with their detection after virtual elimination of contrast medium at dual-energy CT urography by using a novel tin filter. Read more

Does clinical pretest probability influence image quality and diagnostic accuracy in dual-source coronary CT angiography?

posted by Martin Heuschmid, M.D. | Oct 12, 2011
Martin Heuschmid, M.D.

To prospectively evaluate the influence of the clinical pretest probability assessed by the Morise score onto image quality and diagnostic accuracy in coronary dual-source CT angiography (DSCTA). Read more

Diagnostic accuracy and image quality of cardiac dual-source CT in patients with arrhythmia

posted by Martin Heuschmid, M.D. | Sep 28, 2011
Martin Heuschmid, M.D.

The aim of the present study was to evaluate the diagnostic accuracy of a new DSCT scanner generation with 83 ms temporal resolution in patients without stable sinus rhythm. Read more

Dual energy CTA of the carotid bifurcation: Advantage of plaque subtraction for assessment of grade of the stenosis and morphology

posted by Martin Heuschmid, M.D. | Sep 21, 2011
Martin Heuschmid, M.D.

Aim of the study was to evaluate the diagnostic value of 3D-MIP images after subtraction of bone and calcified plaques (PBS) using dual energy CT for the assessment of carotid bifurcation stenoses. Read more

Urinary calculi composed of uric acid, cystine, and mineral salts: differentiation with dual-energy CT at a radiation dose comparable to that of intravenous pyelography

posted by Martin Heuschmid, M.D. | Sep 16, 2011
Martin Heuschmid, M.D.

To retrospectively evaluate radiation dose, image quality, and the ability to differentiate urinary calculi of differing compositions by using low-dose dual-energy CT. Read more

DSCT: estimation of radiation exposure of ECG-gated and ECG-triggered coronary angiography

posted by Martin Heuschmid, M.D. | Aug 26, 2011
Martin Heuschmid, M.D.

The aim of the study was to estimate radiation exposure of coronary calcium scoring and angiography using ECG-gated and ECG-triggered DSCT. Read more

Coronary CT angiography with DSCT in 170 patients

posted by Martin Heuschmid, M.D. | Aug 8, 2011
Martin Heuschmid, M.D.

In preliminary studies DSCT provides robust image quality over a wide range of heart rates and excludes CAD with high accuracy. The aim of the present study was to evaluate the reproducibility of these results in a large, unselected and consecutive group of patients scheduled for invasive coronary angiography (ICA). Read more

Dual-energy CT: is there a penalty in image quality and radiation dose compared with single-energy CT?

posted by Martin Heuschmid, M.D. | Jul 29, 2011
Martin Heuschmid, M.D.

To assess dose and image quality of dual-energy (DE) mixed images in comparison to single-energy (SE) images. Read more

Automatic lumen segmentation in calcified plaques: dual-energy CT versus standard reconstructions in comparison with digital subtraction angiography

posted by Martin Heuschmid, M.D. | Jul 5, 2011
Martin Heuschmid, M.D.

DECT has the potential to automatically remove calcified plaques from angiographic data sets. The objective of this study is to compare the accuracy of visual grading of stenoses after plaque removal with visual grading in standard reconstructions. Read more

Automatic bone and plaque removal using dual energy CT for head and neck angiography: feasibility and initial performance evaluation

posted by Martin Heuschmid, M.D. | Jun 20, 2011
Martin Heuschmid, M.D.

We sought to evaluate the feasibility and efficiency of dual energy (DE) bone and plaque removal in head and neck CT angiography. Read more

Differentiation of urinary calculi with dual energy CT: effect of spectral shaping by high energy tin filtration

posted by Martin Heuschmid, M.D. | May 25, 2011
Martin Heuschmid, M.D.

The aim of this in vitro study was to examine the influence of an additional tin filter for the differentiation of human urinary calculi by dual energy CT. Read more

Diagnostic accuracy and image quality of cardiac DSCT in patients with arrhythmia

posted by Martin Heuschmid, M.D. | Sep 24, 2010
Martin Heuschmid, M.D.

However, in patients with heart rate irregularities, MDCT was found to have limitations. Thus, the aim of the present study was to evaluate the diagnostic accuracy of a new DSCT scanner generation with 83 ms temporal resolution in patients without stable sinus rhythm. Read more

Dual-energy CT for the characterization of urinary calculi: In vitro and in vivo evaluation of a low-dose scanning protocol

posted by Martin Heuschmid, M.D. | Aug 24, 2010
Martin Heuschmid, M.D.

The efficiency and radiation dose of a low-dose dual-energy (DE) CT protocol for the evaluation of urinary calculus disease were evaluated. Read more

Quantitative parameters to compare image quality of non-invasive coronary angiography with 16-slice, 64-slice and DSCT

posted by Martin Heuschmid, M.D. | Jul 20, 2010
Martin Heuschmid, M.D.

The main advantage of DSCT lies with the heart rate independency, which might have a positive impact on the diagnostic accuracy. Read more

Image quality analysis to reduce dental artifacts in head and neck imaging with DSCT

posted by Martin Heuschmid, M.D. | Jun 8, 2010
Martin Heuschmid, M.D.

MPRs are not capable of reducing dental artifacts sufficiently. In patients with dental artifacts overlying the anatomical structures of the oropharynx, an additional short angulated spiral parallel to the floor of the mouth is recommended and should be applied for daily routine. Read more

Case: Significant Pulmonary Vein Stenosis

posted by Martin Heuschmid, M.D. | Oct 13, 2008
Martin Heuschmid, M.D.
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History Following successful RFCA a 51-year-old female was presented to CT for exclusion of pulmonary vein stenosis. The patient was clinically asymptomatic. Question Presence of post-interventional pulmonary vein stenosis or exclusion of further complications. Diagnosis / Differential diagnosis • Post-procedural 70% high grade stenosis of the proximal upper left pulmonary vein. • No evidence of further … Read more

DSCT: advances of improved temporal resolution in coronary plaque imaging

posted by Martin Heuschmid, M.D. | Sep 2, 2008
Martin Heuschmid, M.D.

Abstract OBJECTIVES: The aim of this study was to quantify image quality gains of a moving coronary plaque phantom using dual-source computed tomography (DSCT) providing 83 milliseconds temporal resolution in direct comparison to 64 slice single-source multidetector CT (MDCT) with a temporal resolution of 165 milliseconds. MATERIALS AND METHODS: Three cardiac … Read more

Protocol Pulmonary Veins

posted by Martin Heuschmid, M.D. | Jun 13, 2008
Martin Heuschmid, M.D.

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

Usefulness of noninvasive cardiac imaging using dual-source computed tomography in an unselected population with high prevalence of coronary artery disease.

posted by Martin Heuschmid, M.D. | May 21, 2008
Martin Heuschmid, M.D.

The aim of the present study was to evaluate the diagnostic accuracy of a new dual-source computed tomographic scanner generation with 83-ms temporal resolution in cardiac imaging. Fifty-one unselected consecutive patients (mean age 64 +/- 10 years) scheduled for invasive coronary angiography because of suspected or known coronary artery disease (CAD) … Read more

ECG edition in dual source CT

posted by Martin Heuschmid, M.D. | May 15, 2008
Martin Heuschmid, M.D.

The following question has been sent by Sofiane Hadjadj, MD, clinical research, Canada: hi, we have just aquired the dual source ct, and I am very impressed by the quality of images for coro ct even with high calccium scoring, my question is regarding the EKG editing, are their any rules … Read more

Minor pulmonary vein stenosis post RFCA

posted by Martin Heuschmid, M.D. | Apr 11, 2008
Martin Heuschmid, M.D.
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History Six weeks after circumferential ablation of all PVs a 48-year old male is referred to CT for follow-up. On CT examination, the patient was not in AF and heart rate was 68 bpm. Question Presence of post-interventional pulmonary vein stenosis. Exclusion of rare complications such as atrial thrombi or pulmonary vein dissection. Diagnosis/Differential … Read more

Using DSCT for Visualizing Pulmonary Veins

posted by Martin Heuschmid, M.D. | Apr 11, 2008

Compared to other cardiac applications, motion artefacts are a minor issue in the examination of pulmonary veins. The University of Tuebingen recommends using the DSCT scanner in a non-gated single source mode for the visualization of the ostia and the distal veins. The role of CT in AF treatment When it comes … Read more

Case: Calcification of the carotid artery

posted by Martin Heuschmid, M.D. | Jan 28, 2008
Martin Heuschmid, M.D.

Case history A 63-year-old hypertensive patient is presenting with transient amaurosis fugax and aphasia for 8 hours. MRI angiography was not possible because a cardiac pacemaker is present. Questions Abnormal anatomy of the carotid vessels? Severe carotid artery stenosis? Plaques of the carotid arteries? Diagnosis / Differential diagnosis Arteriosclerosis of the internal carotid artery Occlusion of carotid artery … Read more

How to make a good report of cardiac CT?

posted by Martin Heuschmid, M.D. | Jan 10, 2008
Martin Heuschmid, M.D.

The following question has been asked by Rusli Muljadi MD, Indonesia: How to make good report of cardiac CT ?  What points must be reported? What the cardiologist want to know about result of cardiac CT? Must we report about cardiac function in every cardiac CT examination? Dear Dr. Muljadi, we use a … Read more

Case: Calcification of the renal artery

posted by Martin Heuschmid, M.D. | Dec 16, 2007
Martin Heuschmid, M.D.
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Case history 62-year-old female presenting with hypertension. She had undergone left nephrectomy 12 years prior. Since she is severely claustrophobic, an MRI can not be performed. Read more

Protocol Vascular Plaque Removal and Detection

posted by Martin Heuschmid, M.D. | Dec 16, 2007
Martin Heuschmid, M.D.

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

Vascular plaque removal / detection

posted by Martin Heuschmid, M.D. | Dec 16, 2007

Dual energy plaque detection is a promising, evolving technique which yields very interesting possible applications. Specific modules enable the automated decomposition of calcium and iodine as well as the removal of calcified hard plaques from the images. Plaque detection with multi-slice systems Imaging arteriosclerosis and its major complication, arterial occlusive disease, is … Read more




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