Joel Aissa
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View article: Pectoral muscle mass is not a robust prognostic factor for survival after left ventricular assist device (LVAD) implantation
Pectoral muscle mass is not a robust prognostic factor for survival after left ventricular assist device (LVAD) implantation Open
View article: Influence of a Deep Learning Noise Reduction on the CT Values, Image Noise and Characterization of Kidney and Ureter Stones
Influence of a Deep Learning Noise Reduction on the CT Values, Image Noise and Characterization of Kidney and Ureter Stones Open
Deep-learning (DL) noise reduction techniques in computed tomography (CT) are expected to reduce the image noise while maintaining the clinically relevant information in reduced dose acquisitions. This study aimed to assess the size, atten…
View article: CT Findings in Patients with COVID-19-Compatible Symptoms but Initially Negative qPCR Test
CT Findings in Patients with COVID-19-Compatible Symptoms but Initially Negative qPCR Test Open
Purpose To assess whether it is possible to reliably detect patients with strong suspicion of COVID-19 despite initially negative quantitative polymerase-chain-reaction (qPCR) tests by means of computed tomography (CT). Materials and Metho…
View article: Applicability of CO-RADS in an Anonymized Cohort Including Early and Advanced Stages of COVID-19 in Comparison to the Recommendations of the German Radiological Society and Radiological Society of North America
Applicability of CO-RADS in an Anonymized Cohort Including Early and Advanced Stages of COVID-19 in Comparison to the Recommendations of the German Radiological Society and Radiological Society of North America Open
Purpose Classifications were created to facilitate radiological evaluation of the novel coronavirus disease 2019 (COVID-19) on computed tomography (CT) images. The categorical CT assessment scheme (CO-RADS) categorizes lung parenchymal cha…
View article: Effect of preoperative erector spinae muscles mass on postoperative outcomes in patients with left ventricular assist devices
Effect of preoperative erector spinae muscles mass on postoperative outcomes in patients with left ventricular assist devices Open
Preoperative ESM mass might predict the length of hospital stay in patients undergoing LVAD implantation. In contrast, it had no effect on MACE, in-hospital mortality, or long-term survival in this study.
View article: Effect of preoperative erector spinae muscles mass on postoperative outcomes in patients with left ventricular assist devices
Effect of preoperative erector spinae muscles mass on postoperative outcomes in patients with left ventricular assist devices Open
Background: Frailty influences the postoperative outcomes in patients undergoing left ventricular assist device (LVAD) implantation; however, a quantitative evaluation method has not been established. The purpose of the present study was t…
View article: Within- and across-network alterations of the sensorimotor network in Parkinson’s disease
Within- and across-network alterations of the sensorimotor network in Parkinson’s disease Open
View article: Evaluation of split-filter dual-energy CT for characterization of urinary stones
Evaluation of split-filter dual-energy CT for characterization of urinary stones Open
Objective: To assess accuracy of dual-energy computed tomography (DECT) to differentiate uric acid from calcium urinary stones in dual-energy split filter vs sequential-spiral vs dual-source acquisition. Methods: Thirty-four urinary stones…
View article: Impact of increasing levels of adaptive statistical iterative reconstruction on image quality in oil-based postmortem CT angiography in coronary arteries
Impact of increasing levels of adaptive statistical iterative reconstruction on image quality in oil-based postmortem CT angiography in coronary arteries Open
View article: Tödliche koronare Gasembolie nach Pulmonalvenenisolation – eine seltene Komplikation
Tödliche koronare Gasembolie nach Pulmonalvenenisolation – eine seltene Komplikation Open
Zusammenfassung Vorhofflimmern und -flattern stellen in Deutschland die häufigsten anhaltenden Herzrhythmusstörungen dar und werden zunehmend mittels ablativer Verfahren minimal-invasiv behandelt. Als seltene Komplikation eines solchen Ver…
View article: Is the prediction of one or two ipsilateral positive lymph nodes by computerized tomography and ultrasound reliable enough to restrict therapeutic neck dissection in oral squamous cell carcinoma (OSCC) patients?
Is the prediction of one or two ipsilateral positive lymph nodes by computerized tomography and ultrasound reliable enough to restrict therapeutic neck dissection in oral squamous cell carcinoma (OSCC) patients? Open
View article: Influence of a novel deep-learning based reconstruction software on the objective and subjective image quality in low-dose abdominal computed tomography
Influence of a novel deep-learning based reconstruction software on the objective and subjective image quality in low-dose abdominal computed tomography Open
Objectives: Modern reconstruction and post-processing software aims at reducing image noise in CT images, potentially allowing for a reduction of the employed radiation exposure. This study aimed at assessing the influence of a novel deep-…
View article: Dose-optimised chest computed tomography for diagnosis of Coronavirus Disease 2019 (COVID-19) – Evaluation of image quality and diagnostic impact
Dose-optimised chest computed tomography for diagnosis of Coronavirus Disease 2019 (COVID-19) – Evaluation of image quality and diagnostic impact Open
Objectives. The detection of Coronavirus Disease 2019 (COVID-19) by reverse transcription polymerase chain reaction (RT-PCR) has varying sensitivity. Computed tomography (CT) of the chest can verify infection in patients with clinical symp…
View article: Diagnostic value and forensic relevance of a novel photorealistic 3D reconstruction technique in post-mortem CT
Diagnostic value and forensic relevance of a novel photorealistic 3D reconstruction technique in post-mortem CT Open
Objectives: Evaluation of performance and forensic relevance of a novel, photorealistic, 3D reconstruction method (cinematic rendering, (CR)) in comparison with conventional post-mortem CT (PMCT) and volume rendering (VR) technique for vis…
View article: Impact of different metal artifact reduction techniques on attenuation correction in 18F-FDG PET/CT examinations
Impact of different metal artifact reduction techniques on attenuation correction in 18F-FDG PET/CT examinations Open
Objective: To evaluate the impact of different metal artifact reduction (MAR) algorithms on Hounsfield unit (HU) and standardized uptake values (SUV) in a phantom setting and verify these results in patients with metallic implants undergoi…
View article: Development of size-specific institutional diagnostic reference levels for computed tomography protocols in neck imaging
Development of size-specific institutional diagnostic reference levels for computed tomography protocols in neck imaging Open
Purpose: To develop size-specific institutional diagnostic reference levels (DRLs) for computed tomography (CT) protocols used in neck CT imaging (cervical spine CT, cervical CT angiography (CTA) and cervical staging CT) and to compare ins…
View article: Size-specific institutional diagnostic reference levels for computed tomography of the neck
Size-specific institutional diagnostic reference levels for computed tomography of the neck Open
Poster: EuroSafe Imaging 2019 / ESI-0053 / Size-specific institutional diagnostic reference levels for computed tomography of the neck by: Boos1, C. Rubbert2, L. M. Sawicki2, G. Antoch2, B. Kraus2, J. Aissa2, C. Thomas2, E. Appel…
View article: Noise insertion in CT for cocaine body packing: where is the limit of extensive dose reduction?
Noise insertion in CT for cocaine body packing: where is the limit of extensive dose reduction? Open
Our results indicate that dose of abdominal CT for the detection of intracorporeal cocaine body packets can be markedly reduced to up to 5% of the initial dose while still providing sufficient image quality to detect ingested body packets.…
View article: Accuracy of Size-Specific Dose Estimate Calculation from Center Slice in Computed Tomography
Accuracy of Size-Specific Dose Estimate Calculation from Center Slice in Computed Tomography Open
To evaluate the accuracy of size-specific dose estimate (SSDE) calculation from center slice with water-equivalent diameter (Dw) and effective diameter (Deff). A total of 1812 CT exams (1583 adult and 229 pediatric) were included in this r…
View article: Iterative metal artefact reduction (MAR) in postsurgical chest CT: comparison of three iMAR-algorithms
Iterative metal artefact reduction (MAR) in postsurgical chest CT: comparison of three iMAR-algorithms Open
Objectives: The purpose of this study was to evaluate the impact of three novel iterative metal artefact (iMAR) algorithms on image quality and artefact degree in chest CT of patients with a variety of thoracic metallic implants. Methods: …
View article: CT pulmonary angiography: simultaneous low-pitch dual-source acquisition mode with 70 kVp and 40 ml of contrast medium and comparison with high-pitch spiral dual-source acquisition with automated tube potential selection
CT pulmonary angiography: simultaneous low-pitch dual-source acquisition mode with 70 kVp and 40 ml of contrast medium and comparison with high-pitch spiral dual-source acquisition with automated tube potential selection Open
70-kVp SimDS-CTPA with 40 ml of CM is feasible in patients with a BMI up to 35 kg m(-2) and can help reduce radiation exposure and CM in these patients.
View article: Cloud-Based CT Dose Monitoring using the DICOM-Structured Report: Fully Automated Analysis in Regard to National Diagnostic Reference Levels
Cloud-Based CT Dose Monitoring using the DICOM-Structured Report: Fully Automated Analysis in Regard to National Diagnostic Reference Levels Open
• The newly developed software based on the DICOM-Structured Report enables large-scale cloud-based CT dose monitoring • The implemented software solution enables automated benchmarking in regard to national DRLs • The local radiation expo…