Sonja K. Olsen

ORCID: 0000-0002-4352-140X
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About
Contact & Profiles
Research Areas
  • Liver Disease Diagnosis and Treatment
  • Liver Disease and Transplantation
  • Hepatitis C virus research
  • Hepatitis B Virus Studies
  • Hepatocellular Carcinoma Treatment and Prognosis
  • Renal Transplantation Outcomes and Treatments
  • Organ Transplantation Techniques and Outcomes
  • Hepatitis Viruses Studies and Epidemiology
  • Virus-based gene therapy research
  • Renal Diseases and Glomerulopathies
  • Advanced MRI Techniques and Applications
  • Head and Neck Cancer Studies
  • Radiation Dose and Imaging
  • Telemedicine and Telehealth Implementation
  • Sarcoma Diagnosis and Treatment
  • Cannabis and Cannabinoid Research
  • Elbow and Forearm Trauma Treatment
  • Amoebic Infections and Treatments
  • Cancer Mechanisms and Therapy
  • HIV/AIDS drug development and treatment
  • Neuroblastoma Research and Treatments
  • Pharmacological Effects and Toxicity Studies
  • Vascular anomalies and interventions
  • Pregnancy and Medication Impact
  • Gastrointestinal Bleeding Diagnosis and Treatment

New York University
2018-2021

NYU Langone Health
2019-2020

Lenox Hill Hospital
2015

Columbia University
2006-2014

Center for Digestive and Liver Diseases
2014

University Hospital Southampton NHS Foundation Trust
2014

NewYork–Presbyterian Hospital
2006-2013

Cornell University
2012-2013

Presbyterian Hospital
2012-2013

New York Hospital Queens
2008-2013

INTRODUCTION: Coronavirus disease 2019 (COVID-19), caused by severe acute respiratory syndrome coronavirus 2 virus, is a predominantly tract infection with the capacity to affect multiple organ systems. Abnormal liver tests, mainly transaminase elevations, have been reported in hospitalized patients. We describe of cholangiopathy patients recovering from COVID-19 characterized marked elevation serum alkaline phosphatase (ALP) accompanied evidence bile duct injury on imaging. METHODS:...

10.14309/ajg.0000000000001264 article EN The American Journal of Gastroenterology 2021-05-16

The treatment of hepatocellular carcinoma (HCC) remains a challenge, with 1- and 3-year survival rates 20% 5%, respectively, median 8 months. However, better understanding the pathogenesis HCC, advances in targeted molecular therapies provide physicians treating this disease new hope. HCC is multidisciplinary, requiring surgeons, hepatologists, interventional radiologists oncologists. Thus, there enormous potential to combine various modalities improve for patients. This review will describe...

10.1177/1756283x09346669 article EN Therapeutic Advances in Gastroenterology 2009-10-05

We studied 28 displaced (Jacob types II and III) fractures of the lateral humeral condyle in children. There were only two Milch type I fractures. Twenty-one treated by open reduction internal fixation with K-wires, Palmer nails, or sutures. Seven patients a plaster cast, five following closed reduction, primary position being accepted two. Anatomic was obtained 18 patients. All but one fracture united at review 2 years to 16 later. The distal humerus wider on injured side all Six had...

10.1097/00009957-200104000-00012 article EN Journal of Pediatric Orthopaedics B 2001-04-01

Background ABO-incompatible organ transplantation typically induces hyperacute rejection. A2-to-O liver transplantations have been successful. This study compared overall and graft survival in O recipients of A2 grafts based on Organ Procurement Transplantation Network data. Methods Scientific Registry Transplant Recipients data were used. The first was entered March 11, 1990; all previous excluded. Between 1990, September 3, 2010, 43,335 underwent transplanation, whom 358 received grafts....

10.1097/tp.0b013e31825c591e article EN Transplantation 2012-08-08

Background Lamivudine (LAM) has been shown to prevent de novo hepatitis B virus (HBV) infection in recipients of core antibody (HBcAb)–positive liver transplants (LT) but primarily small studies with limited follow-up. Methods We conducted a retrospective cohort study HBcAb+ graft at our institution from October 1999 August 2008. Results One hundred nineteen without prior HBV were identified (median age, 54 years; 70% male), which 62 received LAM. The median follow-up was 2.6 years overall...

10.1097/tp.0b013e3182845f97 article EN Transplantation 2013-04-15

There is conflicting literature regarding the superiority of transarterial chemoembolization (TACE) versus bland embolization (TAE), and this has not been well studied before transplantation. Twenty-five TAE patients were matched in a 1:2 ratio with TACE by initial radiographic tumor size number retrospective, case-controlled study. The otherwise treated according to same protocols. method was chosen on basis interventionalist practices at 2 sites within program. Kaplan-Meier survival...

10.1002/lt.23846 article EN Liver Transplantation 2014-02-03

Background: There is a lack of consensus in optimal management portal vein thrombosis (PVT) patients with cirrhosis. The purpose this study to compare the safety and burden change for cirrhotic non-tumoral PVT managed by transjugular intrahepatic portosystemic shunt (TIPS) only, anticoagulation or no treatment. Methods: This single-center retrospective evaluated 52 cirrhosis TIPS only (14), (11), treatment (27). demographic, clinical, imaging data were collected. portomesenteric liver...

10.3390/jcm10112316 article EN cc-by Journal of Clinical Medicine 2021-05-26

Prevention of recurrent hepatitis C virus (HCV) following liver transplant (LT) with pre-LT antiviral therapy is limited by poor tolerability and efficacy. We aimed to evaluate the safety efficacy NS3/4A protease inhibitor (PI)-based triple in patients awaiting LT.Consecutive treated from two centers were prospectively enrolled an observational cohort. Overall 12 week sustained virological response (SVR12) was primary outcome. Pre- post-LT (pTVR) rates secondary outcomes.Twenty-nine (mean...

10.1111/liv.12616 article EN Liver International 2014-06-06

Lamivudine has been shown to prevent de novo hepatitis B virus (HBV) infections in liver transplantation (LT) patients receiving core antibody–positive (HBcAb+) grafts, but it may produce long-term resistance. Adefovir dipivoxil (ADV) might be effective preventing and A single-center, prospective trial was conducted with 16 adults (10 men 6 women, mean age = 54 ± 11 years) who underwent LT HBcAb+ grafts between September 2007 October 2009. After LT, were given ADV [10 mg daily (adjusted for...

10.1002/lt.23429 article EN Liver Transplantation 2012-03-16

To develop a 3D sequence for T1ρ relaxation mapping using radial volumetric encoding (3D-T1ρ -RAVE) and to evaluate the multi components in liver of healthy controls chronic disease (CLD) patients.Fat saturation preparation modules were followed by train gradient-echo acquisitions T1 restoration delay. The series -weighted images fitted mono-exponential, bi-exponential, stretched-exponential models. repeatability reproducibility proposed technique evaluated on National Institute Standards...

10.1002/mrm.28061 article EN Magnetic Resonance in Medicine 2019-11-14

Substantial evidence has linked ionizing radiation exposure (RE) to oncogenesis. Patients evaluated for transplantation undergo extensive diagnostic imaging and have increased baseline cancer risk factors. The objective was examine in a cohort of patients undergoing evaluation liver transplantation. Radiation from all examinations procedures were retrospectively recorded. is reported mSv, standardized measure the detrimental biologic effect which allows population-level comparisons....

10.1002/hep.26633 article EN Hepatology 2013-07-31

10.1007/s11894-008-0007-x article EN Current Gastroenterology Reports 2008-01-31

<h3>Introduction</h3> ALT is one of the most commonly used tests to detect liver disease for further investigation, but its accuracy uncertain. Currently there no systematic review diagnostic in detecting fibrosis using biopsy as reference standard. <h3>Methods</h3> Standardised methods conducting reviews were used. MEDLINE, EMBASE, and lists from articles searched. Studies included if they evaluated paired samples serum, with extractable data ALT, &gt;30 participants, presented sensitivity,...

10.1136/gutjnl-2014-307263.531 article EN Gut 2014-06-01
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