Michael Lell
YOU?
Author Swipe
View article: Evidence-based guideline diagnosis, treatment, prevention and aftercare of oropharyngeal and hypopharyngeal carcinoma
Evidence-based guideline diagnosis, treatment, prevention and aftercare of oropharyngeal and hypopharyngeal carcinoma Open
The guideline is being drawn up as a joint guideline for oropharyngeal and hypopharyngeal carcinoma. Oropharyngeal carcinoma in particular has experienced the greatest increase in incidence among all head and neck carcinomas in the last 20…
View article: Training of a deep learning based digital subtraction angiography method using synthetic data
Training of a deep learning based digital subtraction angiography method using synthetic data Open
Background Digital subtraction angiography (DSA) is a fluoroscopy method primarily used for the diagnosis of cardiovascular diseases (CVDs). Deep learning‐based DSA (DDSA) is developed to extract DSA‐like images directly from fluoroscopic …
View article: Two-View Topogram-Based Anatomy-Guided CT Reconstruction for Prospective Risk Minimization
Two-View Topogram-Based Anatomy-Guided CT Reconstruction for Prospective Risk Minimization Open
To facilitate a prospective estimation of CT effective dose and risk minimization process, a prospective spatial dose estimation and the known anatomical structures are expected. To this end, a CT reconstruction method is required to recon…
View article: Computed Tomography 2.0
Computed Tomography 2.0 Open
Computed tomography (CT) dramatically improved the capabilities of diagnostic and interventional radiology. Starting in the early 1970s, this imaging modality is still evolving, although tremendous improvements in scan speed, volume covera…
View article: Organ-specific vs. patient risk-specific tube current modulation in thorax CT scans covering the female breast
Organ-specific vs. patient risk-specific tube current modulation in thorax CT scans covering the female breast Open
An important goal in modern CT imaging is reducing the dose delivered to patients especially to risk-relevant organs. This work compares the clinically applied dose reduction techniques mAs-minimizing tube current modulation (mAsTCM) and a…
View article: Glymphatic System in Ocular Diseases: Evaluation of MRI Findings
Glymphatic System in Ocular Diseases: Evaluation of MRI Findings Open
Increased gadolinium enhancement was found in the central and lateral anterior eye compartments and the vitreous body with retina in patients with anterior eye compartment disorders 20 and 120 minutes after contrast application, suggesting…
View article: Patient‐specific radiation risk‐based tube current modulation for diagnostic CT
Patient‐specific radiation risk‐based tube current modulation for diagnostic CT Open
Purpose Modern CT scanners use automatic exposure control (AEC) techniques, such as tube current modulation (TCM), to reduce dose delivered to patients while maintaining image quality. In contrast to conventional approaches that minimize t…
View article: Neurovascular Compression in Arterial Hypertension: Correlation of Clinical Data to 3D-Visualizations of MRI-Findings
Neurovascular Compression in Arterial Hypertension: Correlation of Clinical Data to 3D-Visualizations of MRI-Findings Open
Aims: In this study, we attempted to identify clinical parameters predicting the absence or presence of Neurovascular Compression (NVC) at the Ventrolateral Medulla (VLM) in arterial hypertension (HTN) in MRI findings. Background: Cardiova…
View article: Deep learning‐based coronary artery motion estimation and compensation for short‐scan cardiac CT
Deep learning‐based coronary artery motion estimation and compensation for short‐scan cardiac CT Open
Purpose During a typical cardiac short scan, the heart can move several millimeters. As a result, the corresponding CT reconstructions may be corrupted by motion artifacts. Especially the assessment of small structures, such as the coronar…
View article: Corrigendum to “Improving contrast enhancement in pulmonary CTA: The value of breathing maneuvers” [Eur J Radiol Open 7 (2020) 100280]
Corrigendum to “Improving contrast enhancement in pulmonary CTA: The value of breathing maneuvers” [Eur J Radiol Open 7 (2020) 100280] Open
[This corrects the article DOI: 10.1016/j.ejro.2020.100280.].
View article: Diagnostic value of 3D dynamic contrast-enhanced magnetic resonance imaging in lymph node metastases of head and neck tumors: a correlation study with histology
Diagnostic value of 3D dynamic contrast-enhanced magnetic resonance imaging in lymph node metastases of head and neck tumors: a correlation study with histology Open
Background Accurate staging of cervical lymph nodes (LN) is pivotal for further clinical management of patients with head and neck cancer. Functional magnetic resonance imaging (MRI) such as three-dimensional (3D) dynamic contrast-enhanced…
View article: High Intensity Resistance Exercise Training vs. High Intensity (Endurance) Interval Training to Fight Cardiometabolic Risk Factors in Overweight Men 30–50 Years Old
High Intensity Resistance Exercise Training vs. High Intensity (Endurance) Interval Training to Fight Cardiometabolic Risk Factors in Overweight Men 30–50 Years Old Open
Cardiovascular and cardiometabolic diseases are leading causes of death worldwide. Exercise favorably affects this problem, however only few invest (enough) time to favorably influence cardiometabolic risk-factors and cardiac morphology/pe…
View article: Predictive Value of VIBE using Subtraction to Evaluate Idiopathic Facial Palsy after Starting Therapy
Predictive Value of VIBE using Subtraction to Evaluate Idiopathic Facial Palsy after Starting Therapy Open
Purpose To determine the predictive value of 3-dimensional spoiled gradient-echo volumetric interpolated breath-hold examination (VIBE) using subtraction to evaluate the short-term effect of therapy for facial palsy. Materials and Methods …
View article: Improving Contrast Enhancement in Pulmonary CTA: The value of breathing maneuvers
Improving Contrast Enhancement in Pulmonary CTA: The value of breathing maneuvers Open
Resting inspiratory position achieved the highest enhancement levels in central and peripheral pulmonary arteries and best image quality of the pulmonary parenchyma in comparison to other breathing maneuvers. It is necessary to train the m…
View article: Automatic multi‐organ segmentation in dual‐energy CT (DECT) with dedicated 3D fully convolutional DECT networks
Automatic multi‐organ segmentation in dual‐energy CT (DECT) with dedicated 3D fully convolutional DECT networks Open
Purpose Dual‐energy computed tomography (DECT) has shown great potential in many clinical applications. By incorporating the information from two different energy spectra, DECT provides higher contrast and reveals more material differences…
View article: Effects of Conventional Uric Acid–Lowering Therapy on Monosodium Urate Crystal Deposits
Effects of Conventional Uric Acid–Lowering Therapy on Monosodium Urate Crystal Deposits Open
Objective Few studies have systematically and quantitatively addressed the impact of urate‐lowering therapy on monosodium urate ( MSU ) deposits. This study was undertaken to analyze the effect of lifestyle measures and conventional urate‐…
View article: Diagnostics and therapy of vestibular schwannomas – an interdisciplinary challenge
Diagnostics and therapy of vestibular schwannomas – an interdisciplinary challenge Open
Vestibular schwannomas (VS) expand slowly in the internal auditory canal, in the cerebellopontine angle, inside the cochlear and the labyrinth. Larger tumors can displace and compress the brainstem. With an annual incidence of 1:100,000 ve…
View article: Myocardial adaption to HI(R)T in previously untrained men with a randomized, longitudinal cardiac MR imaging study (Physical adaptions in Untrained on Strength and Heart trial, PUSH-trial)
Myocardial adaption to HI(R)T in previously untrained men with a randomized, longitudinal cardiac MR imaging study (Physical adaptions in Untrained on Strength and Heart trial, PUSH-trial) Open
The PUSH-trial is registered at the US National Institutes of Health (ClinicalTrials.gov), NCT01766791.
View article: Towards Automatic Abdominal Multi-Organ Segmentation in Dual Energy CT using Cascaded 3D Fully Convolutional Network
Towards Automatic Abdominal Multi-Organ Segmentation in Dual Energy CT using Cascaded 3D Fully Convolutional Network Open
Automatic multi-organ segmentation of the dual energy computed tomography (DECT) data can be beneficial for biomedical research and clinical applications. However, it is a challenging task. Recent advances in deep learning showed the feasi…
View article: Image quality, diagnostic accuracy, and potential for radiation dose reduction in thoracoabdominal CT, using Sinogram Affirmed Iterative Reconstruction (SAFIRE) technique in a longitudinal study
Image quality, diagnostic accuracy, and potential for radiation dose reduction in thoracoabdominal CT, using Sinogram Affirmed Iterative Reconstruction (SAFIRE) technique in a longitudinal study Open
Using SAFIRE the reference mAs in thoracoabdominal CT can be reduced by at least 30% in clinical routine without loss of image quality or diagnostic information.
View article: Relationship between low tube voltage (70 kV) and the iodine delivery rate (IDR) in CT angiography: An experimental in-vivo study
Relationship between low tube voltage (70 kV) and the iodine delivery rate (IDR) in CT angiography: An experimental in-vivo study Open
All protocols provided sufficient arterial enhancement. The use of a 70 kV CTA protocol is recommended because of a 50% reduction of total CM volume and a 50% reduced flow rate while maintaining the bolus profile. In contrast to pulmonary …
View article: Protein Supplementation to Augment the Effects of High Intensity Resistance Training in Untrained Middle-Aged Males: The Randomized Controlled PUSH Trial
Protein Supplementation to Augment the Effects of High Intensity Resistance Training in Untrained Middle-Aged Males: The Randomized Controlled PUSH Trial Open
High intensity (resistance exercise) training (HIT) defined as a “single set resistance exercise to muscular failure” is an efficient exercise method that allows people with low time budgets to realize an adequate training stimulus. Althou…
View article: Microcystic adnexal carcinoma (MAC)-like squamous cell carcinoma as a differential diagnosis to Bell's palsy: Review of guidelines for refractory facial nerve palsy
Microcystic adnexal carcinoma (MAC)-like squamous cell carcinoma as a differential diagnosis to Bell's palsy: Review of guidelines for refractory facial nerve palsy Open
Background Bell's palsy is the most common cause of facial paralysis worldwide and the most common disorder of the cranial nerves. It is a diagnosis of exclusion, accounting for 60–75% of all acquired peripheral facial nerve palsies. Our c…
View article: Impact of whole body electromyostimulation on cardiometabolic risk factors in older women with sarcopenic obesity: the randomized controlled FORMOsA-sarcopenic obesity study
Impact of whole body electromyostimulation on cardiometabolic risk factors in older women with sarcopenic obesity: the randomized controlled FORMOsA-sarcopenic obesity study Open
The study clearly confirms the favorable effect of WB-EMS application on the MetS in community-dwelling women aged ≥70 years with SO. However, protein-enriched supplements did not increase effects of WB-EMS alone. In summary, we considered…