Lorenz Biggemann
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View article: Erratum: Modalitäten des Stagings und der Diagnostik bei Rektumkarzinom
Erratum: Modalitäten des Stagings und der Diagnostik bei Rektumkarzinom Open
View article: Renal tumor segmentation, visualization, and segmentation confidence using ensembles of neural networks in patients undergoing surgical resection
Renal tumor segmentation, visualization, and segmentation confidence using ensembles of neural networks in patients undergoing surgical resection Open
Objectives To develop an automatic segmentation model for solid renal tumors on contrast-enhanced CTs and to visualize segmentation with associated confidence to promote clinical applicability. Materials and methods The training dataset in…
View article: Management von Verletzungen parenchymatöser Abdominalorgane
Management von Verletzungen parenchymatöser Abdominalorgane Open
Zusammenfassung Die häufigsten betroffenen Organe abdomineller Traumata sind die Milz und die Leber, häufig auch in Kombination. Verletzungen des Pankreas sind vergleichsweise selten. Beim deutlich häufigeren stumpfen Abdominaltrauma sollt…
View article: Radiomics and machine learning for renal tumor subtype assessment using multiphase computed tomography in a multicenter setting
Radiomics and machine learning for renal tumor subtype assessment using multiphase computed tomography in a multicenter setting Open
View article: Modalitäten des Stagings und der Diagnostik bei Rektumkarzinom
Modalitäten des Stagings und der Diagnostik bei Rektumkarzinom Open
Zusammenfassung Die Übersichtsarbeit „Modalitäten des Stagings und der Diagnostik bei Rektumkarzinom“ soll einen Einblick in die bildgebende Diagnostik bei Patient*innen mit Rektumkarzinom geben. Das Rektumkarzinom ist eine der häufigsten …
View article: Visualization of deglutition and gastroesophageal reflux using real-time MRI: a standardized approach to image acquisition and assessment
Visualization of deglutition and gastroesophageal reflux using real-time MRI: a standardized approach to image acquisition and assessment Open
This study aims to develop a standardized algorithm for gastroesophageal image acquisition and diagnostic assessment using real-time MRI. Patients with GERD symptoms undergoing real-time MRI of the esophagus and esophagogastric junction be…
View article: Time to Deliver on Promises: The Role of ERBB2 Alterations as Treatment Options for Colorectal Cancer Patients in the Era of Precision Oncology
Time to Deliver on Promises: The Role of ERBB2 Alterations as Treatment Options for Colorectal Cancer Patients in the Era of Precision Oncology Open
Receptor tyrosine kinase erythroblastic oncogene B2 (ERBB2), also known as human epidermal growth factor receptor 2 (HER2), represents an oncogenic driver and has been effectively targeted in breast and gastric cancer. Recently, next-gener…
View article: Causes of Hypoxemia in COVID-19 Acute Respiratory Distress Syndrome: A Combined Multiple Inert Gas Elimination Technique and Dual-energy Computed Tomography Study
Causes of Hypoxemia in COVID-19 Acute Respiratory Distress Syndrome: A Combined Multiple Inert Gas Elimination Technique and Dual-energy Computed Tomography Study Open
Background: Despite the fervent scientific effort, a state-of-the art assessment of the different causes of hypoxemia (shunt, ventilation–perfusion mismatch, and diffusion limitation) in COVID-19 acute respiratory distress syndrome (ARDS) …
View article: T1 mapping of the prostate using Single-Shot T1FLASH and MOLLI MRI Techniques: Comparison of artifact burden and image quality
T1 mapping of the prostate using Single-Shot T1FLASH and MOLLI MRI Techniques: Comparison of artifact burden and image quality Open
T1FLASH maps provide a fast and robust method for quantification of T1 relaxation times of the prostate. T1FLASH is suitable for T1 mapping of the prostate following administration of contrast agents, while MOLLI T1 mapping is impaired thr…
View article: Management of Aortoesophageal Fistula in a Palliative Patient with Non-Small-Cell Lung Cancer: A Case Report
Management of Aortoesophageal Fistula in a Palliative Patient with Non-Small-Cell Lung Cancer: A Case Report Open
Introduction: Aortoesophageal fistulas are a rare but life-threatening complication in patients with thoracic malignancies. Case Presentation: We describe a case of a 55-year-old female patient with metastatic non-small-cell lung cancer. D…
View article: Metastase oder Sarkoidose – eine diagnostische Herausforderung beim metastasierten Rektumkarzinom
Metastase oder Sarkoidose – eine diagnostische Herausforderung beim metastasierten Rektumkarzinom Open
Zusammenfassung Hintergrund Granulomatöse Erkrankungen wie Sarkoidose können die Diagnostik bei onkologischen Erkrankungen erschweren, da Metastasen bildmorphologisch häufig nicht von Granulomen zu unterscheiden sind. Die vorliegende Kasui…
View article: Kinetics of human leukocyte antigen receptor HLA-DR+ monocytes and T lymphocytes during remission induction therapy in ANCA-associated vasculitis
Kinetics of human leukocyte antigen receptor HLA-DR+ monocytes and T lymphocytes during remission induction therapy in ANCA-associated vasculitis Open
Anti-neutrophil cytoplasmic antibody (ANCA)-associated vasculitis is characterized by small vessel inflammation and the presence of autoantibodies against cytoplasmic proteases, most often proteinase-3 and myeloperoxidase. Peripheral blood…
View article: Dual-Positive MPO- and PR3-ANCA-Associated Vasculitis Following SARS-CoV-2 mRNA Booster Vaccination: A Case Report and Systematic Review
Dual-Positive MPO- and PR3-ANCA-Associated Vasculitis Following SARS-CoV-2 mRNA Booster Vaccination: A Case Report and Systematic Review Open
As the coronavirus disease 2019 (COVID-19) pandemic is ongoing, and new variants of severe acute respiratory syndrome coronavirus type 2 (SARS-CoV-2) are emerging, vaccines are needed to protect individuals at high risk of complications an…
View article: Assessment of esophagogastric junction morphology by dynamic real-time MRI: comparison of imaging features to high-resolution manometry
Assessment of esophagogastric junction morphology by dynamic real-time MRI: comparison of imaging features to high-resolution manometry Open
Purpose To assess the esophagogastric junction (EGJ) on real-time MRI and compare imaging parameters to EGJ morphology on high-resolution manometry (HRM). Methods A total of 105 of 117 eligible patients who underwent real-time MRI and high…
View article: Phantom study for comparison between computed tomography- and C-Arm computed tomography-guided puncture applied by residents in radiology
Phantom study for comparison between computed tomography- and C-Arm computed tomography-guided puncture applied by residents in radiology Open
Purpose Comparison of puncture deviation and puncture duration between computed tomography (CT)- and C-arm CT (CACT)-guided puncture performed by residents in training (RiT). Methods In a cohort of 25 RiTs enrolled in a research training p…
View article: Assessment of esophageal motility disorders by real-time MRI
Assessment of esophageal motility disorders by real-time MRI Open
Real-time MRI is an auxiliary diagnostic tool for the assessment of swallowing events. Imaging parameters may assist in the detection of esophageal motility disorders.
View article: Discriminating malignant and benign clinical T1 renal masses on computed tomography
Discriminating malignant and benign clinical T1 renal masses on computed tomography Open
The aim of this study was to discriminate malignant and benign clinical T1 renal masses on routinely acquired computed tomography (CT) images using radiomics and machine learning techniques. Adult patients undergoing surgical resection and…
View article: Impact of Endoscopic Vacuum Therapy with Low Negative Pressure for Esophageal Perforations and Postoperative Anastomotic Esophageal Leaks
Impact of Endoscopic Vacuum Therapy with Low Negative Pressure for Esophageal Perforations and Postoperative Anastomotic Esophageal Leaks Open
Introduction: Management of esophageal anastomotic leaks (AL) and esophageal perforations (EP) remains difficult and often requires an interdisciplinary treatment modality. For primary endoscopic management, self-expanding metallic stent (…
View article: Comparative proteomics reveals a diagnostic signature for pulmonary head‐and‐neck cancer metastasis
Comparative proteomics reveals a diagnostic signature for pulmonary head‐and‐neck cancer metastasis Open
View article: Splenic torsion with involvement of pancreas and descending colon in a 9-year-old boy
Splenic torsion with involvement of pancreas and descending colon in a 9-year-old boy Open
Splenic torsion is an uncommon condition becoming clinically apparent when the spleen twists or rotates around the organ's vascular pedicle. In the case of a wandering spleen the organ is only attached to an elongated vascular pedicle whil…