Nationwide Provision of Radiologically-guided Interventional Measures for the Supportive Treatment of Tumor Diseases in Germany - An Analysis of the DeGIR Registry Data.

Purpose: In addition to direct oncologic therapy, interventional radiology plays an important supportive role in oncologic therapy primarily guided by other disciplines. These supporting measures include diagnostic punctures, drainages, biliary interventions, central venous access including port implantations, osteoplasties, pain therapies etc.).

Availability of Interventional Oncology in Germany in the Years 2018 and 2019 - Results from a Nationwide Database (DeGIR Registry Data).

Objective: Over the past few decades, radiology has established itself in tumor therapy through interventional oncology including innovative and efficient procedures for minimalinvasive treatment of various tumor entities besides the "classic" therapeutic options such as surgery, chemotherapy and radiotherapy.Aim of this study was to evaluate the extent to which interventional oncology can provide nationwide care using the data from the register of the German Society for Interventional Radiology and Minimally Invasive Therapy (DeGIR registry), which records radiological interventions as part of quality assurance.

Methods: The numbers of interventions of participating clinics, which were recorded as part of module D (oncological procedures including TACE or other tumor-specific embolization, ablation, percutaneous tumor therapy) and identified by the DeGIR registry between 2018 and 2019, were analyzed retrospectively.

DeGIR Quality Report 2019: Report on the treatment quality of minimally invasive methods - Interventional therapy (EVAR) of abdominal aortic aneurysms.

Purpose: To analyze the quality of endovascular aortic aneurysm repair using the data of the DeGIR quality management system. Comparison of data between 2011 and 2019.

Materials And Methods: A retrospective analysis of all data registered in the DeGIR quality management system of the year 2019 was performed regarding the treatment quality for endovascular aortic aneurysm repair.

Availability of interventional-radiological revascularization procedures in Germany - an analysis of the DeGIR Registry Data 2018/19.

Purpose: Peripheral artery disease (PAD) is a common condition with high socio-economic relevance. Therefore, qualified nationwide provision of interventional treatments of PAD is important for maintaining a high quality medical service in Germany.

Materials And Methods: All data on revascularization procedures from the quality management system of the German interventional radiological society (DeGIR) for the years 2018 and 2019 were retrospectively analysed.

[Comparison of radiation exposure in common hepatic interventions : A retrospective analysis of DeGIR registry data].

Background: Transcatheter arterial chemoembolization (TACE) and biliary interventions are common procedures.

Objectives: In this retrospective study, the radiation exposure of patients undergoing hepatic intervention will be analyzed and compared depending on the type and objective of the intervention.

Materials And Methods: This is an analysis of 7003 data sets of performed TACEs and biliary interventions from the DeGIR registry for the years 2016, 2017, and 2018.

Availability of Transcatheter Vessel Occlusion Performed by Interventional Radiologists to Treat Bleeding in Germany in the Years 2016 and 2017 - An Analysis of the DeGIR Registry Data.

Purpose:  Acute bleeding is a life-threatening condition that can be effectively treated minimally invasively by interventional radiologists using transcatheter vessel occlusion (TCVO). The purpose of this study was to evaluate the availability of TCVO performed by interventional radiologists in Germany based on the DeGIR registry.

Materials And Methods:  TCVO interventions from the years 2016 and 2017 were included (DeGIR module B).

Real-world outcomes of endovascular treatment in a non-selected population with peripheral artery disease - prospective study with 2-year follow-up.

The study aimed to evaluate the outcomes of percutaneous transluminal angioplasty (PTA) in lower-extremity peripheral artery disease (PAD) patients. A multi-centre, observational study was performed with 32 German and Austrian centres contributing data to the PTA registry. Data of 1,781 patients with lower-leg and pelvic PAD who were suitable for endovascular PTA treatment were contributed from participating centres.

Diagnostic Reference Levels for Diagnostic and Interventional X-Ray Procedures in Germany: Update and Handling.

Purpose:  Recent developments in medical technology have broadened the spectrum of X-ray procedures and changed exposure practice in X-ray facilities. For this reason, diagnostic reference levels (DRLs) for diagnostic and interventional X-ray procedures were updated in 2016 and 2018, respectively. It is the aim of this paper to present the procedure for the update of the DRLs and to give advice on their practical application.

What is the best position for palatal implants? A CBCT study on bone volume in the growing maxilla.

Objective: The objectives of the present study are the following: (a) to investigate limitations (bone height, proximity to nasopalatine nerve and roots) in juvenile patients, (b) to review the recommended site for surgical insertion (level of the maxillary first premolars), and (c) to reassess the rationale behind the manufacturer's age limitation (12 years).

Patients And Methods: Cone beam CT images of 100 patients aged 10 to 20 years were analyzed. Vertical bone heights were measured in the median plane as well as 3- and 6-mm paramedian along the prospective axis of insertion, at the level of the first premolars (level 0), 3 mm anterior (level 1) and 3 mm posterior (level 2).

Mechanical thrombectomy - an alternative treatment option in a patient with acute ischemic stroke and multiple contraindications for systemic thrombolysis: a case report.

Introduction: Acute ischemic stroke is a common cause of disability and death in developed countries. Standard therapy for patients who present within 4.5 hours from the onset of symptoms is intravenous thrombolysis if contraindications such as oral anticoagulation, cancer or recent surgery are ruled out.

Multimodal CT imaging and recanalizing therapy in acute ischemic stroke: retrospective analysis of a one-year single-center experience.

Background: Recanalizing therapy in ischemic stroke is restricted to thrombolysis within 3 h. Multimodal imaging of vessel and parenchymal perfusion status may allow the extension of this time window.

Aim: To retrospectively analyze treatment results of any recanalizing therapy in clinical practice.

MRI patterns in recurrence of primary CNS lymphoma in immunocompetent patients.

Purpose: Primary CNS lymphomas (PCNSL) are highly malignant non-Hodgkin's B-cell lymphoma restricted to the CNS. While MRI features of PCNSL at initial presentation have been comprehensively described, literature on MRI-characteristics at relapse is sparse. The purpose of this study was to investigate anatomic location and contrast enhancement patterns at PCNSL recurrence by cranial MRI.

Vertical palatal bone dimensions on lateral cephalometry and cone-beam computed tomography: implications for palatal implant placement.

Objectives: To evaluate the necessity of three-dimensional imaging (computed tomography [CT]/cone-beam computed tomography [CBCT]) for paramedian insertion of palatal implants.

Material And Methods: Lateral radiographs and CBCT scans were performed from 18 human skulls. For lateral cephalometry, the nasal floor (right/left) and the oral hard palate of all skulls were lined with a tin foil for contrast enhancement.

Image quality in CT perfusion imaging of the brain. The role of iodine concentration.

The purpose of this study was to evaluate the impact of various iodine contrast concentrations on image quality in computed tomography (CT) perfusion studies. Twenty-one patients with suspicion of cerebral ischemia underwent perfusion CT using two different iodine contrast concentrations: 11 patients received iomeprol 300 (iodine concentration: 300 mg/ml ) while ten received the same volume of iomeprol 400 (iodine concentration: 400 mg/ml). Scan parameters were kept constant for both groups.

Pro-CAS: a prospective registry of carotid angioplasty and stenting.

Background And Purpose: The German Societies of Angiology and Radiology have instituted a prospective registry of carotid angioplasty and stenting (CAS) to limit uncontrolled use of CAS and to collect data about technique and results of CAS outside clinical trials.

Methods: A total of 38 centers register their patients prospectively before CAS is performed. At discharge, technical details, periprocedural medication, and the clinical course are reported on a standardized form.