Rendezvous Technique for Advanced Pancreatic Duct Interventions.

Interventional radiology can be used to perform complex pancreatic duct (PD) interventions in cases in which PD abnormalities limit the feasibility of an endoscopic approach. A multidisciplinary approach with gastroenterology using the rendezvous technique can improve procedural success. The establishment of through-and-through access to the PD via a combined percutaneous and endoscopic approach can be used when endoscopy alone fails.

Multicenter assessment of augmented reality registration methods for image-guided interventions.

Purpose: To evaluate manual and automatic registration times and registration accuracies on HoloLens 2 for aligning a 3D CT phantom model onto a CT grid, a crucial step for intuitive 3D navigation during CT-guided interventions; to compare registration times between HoloLens 1 and 2.

Methods: Eighteen participants in various stages of clinical training across two academic centers performed registration of a 3D CT phantom model onto a CT grid using HoloLens 2. Registration times and accuracies were compared among different registration methods, clinical experience levels, and consecutive attempts.

Aortic Dissection: Branched, Fenestrated, and Parallel Aortic Stent Grafts in the Ascending Aorta and Arch.

Open surgical repair of dissections and post-dissection degenerative aneurysms involving the ascending thoracic aorta and aortic arch, whether in the acute or post-repair state, is associated with high rates of morbidity and mortality. Recent advancements in minimally invasive endovascular techniques have expanded the role of thoracic endovascular aortic repair (TEVAR) for dissections and dissection-related arch pathologies. Image-guided endovascular techniques, such as in situ fenestrated grafts, chimney and/or periscope grafts, along with newly developed commercially available branched aortic devices, have allowed for an increasing number of high-risk operative candidates to undergo definitive repair of aortic arch pathology who otherwise would have been destined for non-operative management.

Diagnostic and Interventional Radiology Case Volume and Education in the Age of Pandemics: Impact Analysis and Potential Future Directions.

Rationale And Objectives: To assess the immediate impact of the COVID-19 pandemic on Diagnostic and Interventional Radiology education, and to propose measures to preserve and augment trainee education during future crises.

Materials And Methods: Diagnostic Radiology (DR) studies and Interventional Radiology (IR) procedures at a single tertiary-care teaching institution between 2015 and 2020 were reviewed. DR was divided by section: body, cardiothoracic, musculoskeletal (MSK), neuroradiology, nuclear medicine, pediatrics, and women's imaging.

Correction to: Yttrium-90 Radioembolization for BCLC Stage C Hepatocellular Carcinoma Comparing Child-Pugh A Versus B7 Patients: Are the Outcomes Equivalent?

The name of one of the co-authors was slightly misspelled. Kristian Enestvedt is listed currently as "Kristian K. Enestvedt" and should be listed instead as "C.

Yttrium-90 Radioembolization for BCLC Stage C Hepatocellular Carcinoma Comparing Child-Pugh A Versus B7 Patients: Are the Outcomes Equivalent?

Objective: To evaluate yttrium-90 (Y90) radioembolization outcomes across Child-Pugh scores in patients with advanced hepatocellular carcinoma (HCC).

Materials And Methods: From April 2005 to December 2018, 106 consecutive patients with BCLC Stage C HCC who underwent Y90 radioembolization were retrospectively analyzed. Exclusion criteria included additional malignancy (n = 7), death unrelated to liver disease (n = 2), metastases (n = 2), or lack of follow-up data (n = 4).

Evaluation and Management of Intermediate and High-Risk Pulmonary Embolism.

The evidence regarding pulmonary embolism treatment has greatly advanced over the past 10 years, particularly in patients with right ventricular dysfunction or hemodynamic instability. Treatment options include systemic anticoagulation, systemic thrombolysis, catheter-assisted thrombus removal (mechanical with or without catheter-directed thrombolysis), and surgical embolectomy. This article will review the data available for treatment options and summarize the evidence-based guidelines on treatment of intermediate- or high-risk pulmonary embolism.

Advanced Techniques in Thoracic Endovascular Aortic Repair: Chimneys/Periscopes, Fenestrated Endografts, and Branched Devices.

Thoracic endovascular aortic repair (TEVAR) is a rapidly growing and improving technique for the management of thoracic aortic aneurysms, dissections, and traumatic aortic injury. These disease processes were previously treated exclusively by surgery, but TEVAR has substantially improved patient outcomes including reduced mortality, reduced paraplegia rate, and shorter hospital and/or intensive care unit stay compared to open surgery. TEVAR was initially isolated to the descending thoracic aorta, but the advent of advanced techniques has extended the scope to well beyond the left subclavian artery and into Zone 0.

Antiplatelet Therapy is Associated with Stent Patency After Iliocaval Venous Stenting.

Purpose: To examine the effectiveness of antithrombotic medications to prevent venous stent malfunction for iliocaval occlusive disease.

Materials And Methods: A retrospective analysis was performed on 62 patients who underwent technically successful endovascular iliocaval stent placement between May 2008 and April 2017. Clinical records were reviewed for demographic information, procedure details, post-stenting antithrombotic prophylaxis and stent patency on follow-up.

Long-Term Toxicity after Transarterial Radioembolization with Yttrium-90 Using Resin Microspheres for Neuroendocrine Tumor Liver Metastases.

Purpose: To evaluate long-term effects of yttrium-90 (Y) transarterial radioembolization (TARE) for unresectable hepatic metastases of neuroendocrine tumors (NETs).

Materials And Methods: Retrospective analysis of 93 patients (47 women, 46 men; mean age 59 y) who underwent resin-based Y TARE was performed. Variables associated with overall survival were analyzed using univariate and multivariate models.

Risk factors for stent graft thrombosis after transjugular intrahepatic portosystemic shunt creation.

Background: To identify risk factors of stent graft thrombosis after transjugular intrahepatic portosystemic shunt (TIPS) creation.

Methods: Patients who underwent TIPS creation between June 2003 and January 2016 and with follow-up assessing stent graft patency were included (n=174). Baseline comorbidities, liver function, procedural details and follow-up liver function tests were analyzed in association with hazards of thrombosis on follow-up.

Expectoration of an inferior vena cava filter strut.

Inferior vena cava (IVC) filter use is widespread in patients with venous thromboembolism (VTE) and temporary contraindication to anticoagulation, though timely removal is often not performed. We report the case of an expectoration of an IVC filter strut. Review of the patient's prior imaging confirmed an infrarenal Bard G2 filter with an absent strut, which was visualised in the left lung base.

Genetics, Pregnancy, and Aortic Degeneration.

We present a case of familial thoracic aortic aneurysm and dissection (FTAAD) in a pregnant female. FTAAD is an inherited, nonsyndromic aortopathy resulting from several genetic mutations critical to aortic wall integrity have been identified. One such mutation is the myosin heavy chain gene (MYH11) which is responsible for 1-2% of all FTAAD cases.

Alveolar soft part sarcoma: unusual etiology of mediastinal mass in an adolescent.

Alveolar soft part sarcoma (ASPS) is a rare malignancy that usually arises in an extremity. Mediastinal involvement is uncommon, with only two reports of primary mediastinal disease and two reports of metastatic mediastinal disease in the literature, all referencing adult patients. To our knowledge, ours is the first report of ASPS presenting with a mediastinal mass in adolescence.