Radiology Commons^™

Pulmonary Embolism And Giant Cavitary Lesion Developing After Covid-19 Pneumonia, Ahmet Vural, Ahmet Nedim Kahraman

HCA Healthcare Journal of Medicine

Introduction: The clinical manifestations of the worldwide pandemic, which began in mainland China in December 2019, were very similar to viral pneumonia and defined as Coronavirus disease 2019 (COVID-19). Complications such as acute respiratory distress syndrome (ARDS), acute cardiac tissue damage, secondary infections, isolated coagulopathy and pulmonary embolism have been reported with COVID-19 disease.

Clinical Findings: A 79-year-old woman admitted to the emergency room (ER) had complaints of fever and cough. The patient was admitted to the ER with the suspicion of COVID-19. Samples were collected with a nasopharyngeal swab and confirmed as COVID-19. In addition, a chest CT examination …

Scalp Myiasis In An Ulcerated Abscess In A 7-Year Old Child, Abdullah Khan, Faheem Ullah Khan, Jawad Ahmad, Hameed Ullah, Wiqar Ahmad

Department of Radiology

No abstract provided.

Conference Proceedings: Aurora Scientific Day 2020

Journal of Patient-Centered Research and Reviews

Abstracts published in this supplement were among those presented at the 46th annual Aurora Scientific Day research symposium, held virtually on May 20, 2020. The symposium provides a forum for describing research studies conducted by faculty, fellows, residents, and allied health professionals affiliated with Wisconsin-based Aurora Health Care, a part of the Advocate Aurora Health health system, which publishes the Journal of Patient-Centered Research and Reviews.

Localizing An Occult Insulinoma By Selective Calcium Arterial Stimulation Test: First Ever Experience And A New Dimension To Diagnosis In Pakistan, Muhammad Owais Rashid, Sumerah Jabeen, Zareen Kiran,, Khurram Minhas, Muhammad Azeemuddin, Najmul Islam

Section of Diabetes, Endocrinology and Metabolism

Insulinomas are rare, usually benign, solitary tumours accounting for 60% of islet cell tumours. These tumours can be difficult to localize preoperatively due to their small size. We present a challenging case of a 40 year old male with frequent hypoglycaemic spells and endogenous hypoglycaemia who presented as a diagnostic dilemma. Patient had an occult insulinoma with inconclusive CT Abdomen, MRI Abdomen and Octreotide scan. The final localization of the tumour was made by selective arterial calcium stimulation testing (SCAT), done for the first time in Pakistan at Aga Khan University Hospital. This was followed by successful distal pancreatectomy as …

Investigating The Metabolic Progression Of Glioblastoma With Hyperpolarized Magnetic Resonance, Travis Salzillo

Dissertations and Theses (Open Access)

Rapid diagnosis and therapeutic monitoring of aggressive diseases such as glioblastoma (GBM) can improve patient survival by providing physicians the time to optimally deliver treatment. This includes early in development, while the tumor is still manageable, or following initial therapy, when alternative treatments should be considered. The main goal of this project was to determine whether metabolic imaging with hyperpolarized magnetic resonance spectroscopy (MRS) could detect changes in tumor progression more rapidly than conventional anatomic magnetic resonance imaging (MRI) in patient-derived GBM murine models. To comprehensively capture the dynamic nature of cancer metabolism, in vivo pyruvate-to-lactate conversion with hyperpolarized MRI, …

A Case Series On Uterine Arteriovenous Malformations: A Life-Threatening Emergency In Young Women, Rabia Hammad, Sidrah Nausheen, Mumtaz Malik

Department of Obstetrics & Gynaecology

Uterine arteriovenous malformation (AVM) is a rare condition, with few cases reported in the literature. Despite being rare, it is a potentially life-threatening condition in women of child-bearing age. It should be considered in the differential diagnosis of prolonged or irregular vaginal bleeding, which, otherwise, can lead to critical complications ending up in severe morbidity and mortality. This case series describes four cases of young Asian women aged between 33 and 38 years who presented with irregular vaginal bleeding. Trans-abdominal ultrasound of the pelvis showed increased vascularity with multi-directional blood flow in the uterus. Magnetic resonance imaging (MRI) confirmed an …

Internal Hernia As A Late Complication Of Roux-En-Y Gastric Bypass Procedure, Samantha Purton, Gabriel Meshekow, My Myers, Edgar Mercado, Allan Katz

West Florida Division GME Research Day 2020

As the prevalence of obesity continues to rise, so does the popularity of bariatric surgery. Previously the Roux-en-Y gastric bypass was the most common bariatric procedure, but now falls second to the gastric sleeve. It remains a relevant procedure, however, accounting for 17% of bariatric procedures in 2018. Due to its prevalence, it is important that the radiologist be familiar with the procedure and its complications such as leak, obstruction, stricture, or, as in this case, internal herniation through a mesenteric defect. Internal hernias are more commonly associated with the laparoscopic approach versus open. This is likely due to fewer …

Tumor Boards During Covid-19 Pandemic, Ahmed Nadeem Abbasi

Department of Radiation Oncology

No abstract provided.

Giant Splenic Artery Pseudoaneurysm Rupture Presenting As Hemorrhagic Shock, Jaya Sanapati, Parth R. Desai, Locke W. Barber, Johnathan Frunzi, Timothy Lee

West Florida Division GME Research Day 2020

A 56-year-old Asian male was brought to the emergency department by first responders after he developed severe, sudden-onset headache and chest pain at his home. Past medical history was insignificant. On arrival to the emergency department, the patient was in respiratory distress. Vital signs revealed temperature of 36.0°C, blood pressure of 71/44, heart rate of 90 beats per minute, respiratory rate of 18 breaths per minute, and oxygen saturation of 95% with delivery of oxygen at 2 liters per minute via nasal cannula. Examination of the abdomen revealed diffuse tenderness. Laboratory findings and arterial blood gas analysis revealed normocytic anemia …

Radiology Of Covid-19 - Imaging The Pulmonary Damage, Saba Sohail

Department of Radiology

A large part of the world is presently in the grip of the coronavirus disease (COVID-19) by severe acute respiratory syndrome coronavirus 2 (SARS-CoV-2 virus), declared a pandemic in March 2020. This document is a brief commentary of the imaging modalities used in the screening, diagnosis and management of COVID-19 pneumonia. Chest x-rays, especially portable, still form a part of majority of official guidelines, with reports of the suggestive radiologic features. The potential of CT scan and ultrasound is also realised, with earlier detection rate. Typical radiologic findings of bilateral, asymmetrical, crazy-paved ground glass opacification, consolidation, reverse halo sign, opacities, …

Rational And Practical Use Of Imaging In Covid-19 Pneumonia, Saba Sohail

Department of Radiology

The severe form of the COVID-19 pandemic caused by the SARS-CoV-2 virus, has largely manifested as a predominant respiratory illness causing severe pneumonia characterized by bilateral, subpleural ground glass haze, progressing to consolidation, and fibrosis on imaging. There is some discrepancy between the governmental guidelines, professional Societies and Radiology and Respiratory Medicine specialists with divided opinions between the use of the chest X-rays and CT scan, and whether the use be screening or diagnostic. So far, the most balanced recommendations have been proposed by the Fleischner Society, which are endorsed by the Radiological Society of Pakistan as well. This writeup …

Evaluation Of Computer Aided Detection Of Tuberculosis On Chest Radiography Among People With Diabetes In Karachi Pakistan, Shifa Salman Habib, Sana Rafiq, Syed Mohammad Asad Zaidi, Rashida Abbas Ferrand, Jacob Creswell, Bram Van Ginneken, Wafa Zehra Jamal, Kiran Sohail Azeemi, Saira Khowaja, Aamir Khan

Community Health Sciences

Pakistan ranks fifth among high tuberculosis (TB) burden countries and also has seventh highest burden for diabetes mellitus (DM). DM increases the risk of developing TB and contributes to adverse TB treatment outcomes hence screening and integrated management for both diseases in high burden countries is suggested. Computer-Aided Detection for TB (CAD4TB) can potentially be used as triage tool in low resource settings to pre-screen individuals for Xpert MTB/RIF testing. The aim of this study was to evaluate the diagnostic accuracy and performance of CAD4TB software in people with diabetes (PWD) enrolled in a TB screening program in Karachi, Pakistan. …

Computer Aided Detection Of Tuberculosis On Chest Radiographs: An Evaluation Of The Cad4tb V6 System, Keelin Murphy, Shifa Salman Habib, Syed Mohammad Asad Zaidi, Saira Khowaja, Aamir Khan, Jaime Melendez, Ernst T. Scholten, Farhan Amad, Steven Schalekamp, Maurits Verhagen

Community Health Sciences

There is a growing interest in the automated analysis of chest X-Ray (CXR) as a sensitive and inexpensive means of screening susceptible populations for pulmonary tuberculosis. In this work we evaluate the latest version of CAD4TB, a commercial software platform designed for this purpose. Version 6 of CAD4TB was released in 2018 and is here tested on a fully independent dataset of 5565 CXR images with GeneXpert (Xpert) sputum test results available (854 Xpert positive subjects). A subset of 500 subjects (50% Xpert positive) was reviewed and annotated by 5 expert observers independently to obtain a radiological reference standard. The …

Ct Rapid Implementation In A 600+ Bed Hospital Serving 35 Counties In The Southeast, Christopher Burns Do, Adam Kassar Md, Jacob Beltz Md, Klie Hoffa, Peter Britt

Radiology

No abstract provided.

Adjuvant Therapy In Adrenocortical Carcinoma: Reflections And Future Directions, Sara Bedrose, Marilyne Daher, Lina Altameemi, Mouhammed Amir Habra

Faculty, Staff and Students Publications

Adrenocortical carcinoma (ACC) is a rare and aggressive malignancy with high risk of recurrence despite macroscopically complete surgical resection. The main predictors of ACC recurrence include advanced disease stage, incomplete surgical resection, cortisol production, certain genetic alterations, and high proliferation rate (Ki-67 proliferation index). Mitotane has been the mainstay adjuvant therapy of ACC. However, the use of mitotane is based on retrospective and occasionally conflicting evidence. As mitotane levels can take a few months before reaching therapeutic levels, there is an emerging practice of combining platinum-based chemotherapy with mitotane in the adjuvant setting. Retrospective data indicate that radiotherapy is an …

Evolution Of Acute Ischemic Stroke Treatment As Supported By Clinical Trials, Savya S. Shukla, Brian F. Baigorri Md, Roberto I. Fourzali Md, Yafell Serulle Md

Radiology

No abstract provided.

Endovascular Management Of Free Floating Common Carotid Thrombi, Kevin Carr Md, Zachary Thwing Md, Ravishankar Shivashankar Md, Yafell Serulle Md

Radiology

• The incidence of symptomatic free-floating thrombi of the common carotid artery (CCA) is as low as 0.24-5% incidence in stroke victims. Patients are predisposed to a prothrombotic state
• Historical management options were limited to surgical and medical options both with individual attendant risk profiles
• Large thrombi can present with various degrees of clinical severity
• The endovascular approach is a viable tool to manage these patients

Retrospective Evaluation Of Weight Loss In Maine Medical Center Cancer Institute (Mmcci) Patients Receiving Radiation Treatment For Head And Neck Cancer, Julian Johnson, David Debartolo-Stone, Jessica Moore, Ruth Hanselman, Stephen Tyzik, Suneela Nayak, Amy Sparks

Operations Transformation

Treatment for head and neck cancer often results in weight loss as a side effect. One option to mitigate this weight loss is placement of a percutaneous endoscopic gastrostomy (PEG) tube placement. Radiation oncologists at a academic tertiary medical center discuss the option of PEG placement during patient consultation.

A retrospective evaluation of weight loss in patients receiving radiation was conducted over a two-year period. The goal of this data collection was to create a standard for oncology consultations regarding PEG tube placement.

Baseline metrics and a root cause analysis drove subsequent data collection steps. After analyzing the raw data, …

A Neonate With Upper Gi Bleeding, Suneeta Khemani, Huma Ghulam Qadir, Mumtaz Malik, Faiqa Hassan

Department of Paediatrics and Child Health

Bleeding in the newborn is often a serious problem because of cardiovascular effects associated with a loss of blood and/or the damaging effects of bleeding on neonatal tissues, especially the brain. Gastric polyps are described as abnormal lesions that originate in the gastric epithelium or submucosa and protrude into the stomach lumen. Clinical presentation of gastric polyps in children varies widely, from incidental endoscopic finding to massive gastrointestinal bleeding. However, acute gastrointestinal bleeding in association with hyperplastic gastric polyps has been reported very rarely. We report a case of unusual upper gastrointestinal bleeding in newborn baby on 2nd day of …

Prognostic Factors For Elderly Patients Treated With Stereotactic Body Radiation Therapy For Pancreatic Adenocarcinoma, Philip A. Sutera, Mark E. Bernard, Hong Wang, Dwight E. Heron

Radiation Medicine Faculty Publications

Introduction: Pancreatic ductal adenocarcinoma (PDAC) commonly presents later in life with a median age at diagnosis of 70 years. Unfortunately, elderly patients are significantly underrepresented in clinical trials. Stereotactic body radiation therapy (SBRT) is a promising treatment modality in this population as it has demonstrated excellent local control with minimal toxicity. We aimed to determine prognostic factors associated with outcomes in elderly patients treated with SBRT.

Materials and Methods: Elderly patients older than 70 treated with SBRT for PDAC at our institution, from 2004 to 2014 were included. Our primary endpoints included overall survival (OS) and local-progression-free survival (LPFS). Secondary …

Parp Pet Imaging Agents, Brandon Carney

Dissertations, Theses, and Capstone Projects

The poly (adenosine-diphosphate (ADP) ribose) polymerase (PARP) family of enzymes has been of interest to researchers and clinicians for over fifty years, especially the first member of the family, PARP1. This enzyme has become a target for cancer therapeutics due the reliance of highly proliferating cells on PARP1 for genomic maintenance. In the coming age of individualized medicine, however, highly specific therapeutic agents like PARP inhibitors are in need of similarly highly specific companion diagnostic agents. These kind of agents have been made possible with the quickly progressing field of molecular imaging. Specifically, positron emission tomography (PET) has enabled the …

Randomized Phase Ii Study Comparing Prophylactic Cranial Irradiation Alone To Prophylactic Cranial Irradiation And Consolidative Extracranial Irradiation For Extensive-Disease Small Cell Lung Cancer (Ed Sclc): Nrg Oncology Rtog 0937, Elizabeth M. Gore, Chen Hu, Alexander Y. Sun, Daniel F. Grimm, Suresh S. Ramalingam, Neal E. Dunlap, Kristin A. Higgins, Maria Werner-Wasik, Aaron M. Allen, Puneeth Iyengar, Gregory M. M. Videtic, Russell K. Hales, Ronald C. Mcgarry, James J. Urbanic, Anthony T. Pu, Candice A. Johnstone, Volker W. Stieber, Rebecca Paulus, Jeffrey D. Bradley

Radiation Medicine Faculty Publications

Introduction—RTOG-0937 is a randomized phase-II trial evaluating 1-year OS with PCI or PCI plus consolidative radiation therapy (cRT) to intra-thoracic disease and extracranial metastases for ED-SCLC.

Methods—Patients with 1–4 extracranial metastases were eligible after CR or PR to chemotherapy. Randomization was to PCI or PCI+cRT to the thorax and metastases. Original stratification included PR vs CR after chemotherapy and 1 vs 2–4 metastases; age < 65 vs ≥ 65 was added after an observed imbalance. PCI was 25GY/10 fractions. cRT was 45GY/15 fractions. To detect an OS improvement from 30% to 45% with a 34% hazard reduction (HR=0·66) under a 0.1 type-1 error (1-sided) and 80% power, 154 patients were required.

Results—Ninety-seven patients were randomized between March, 2010 and February, 2015. Eleven patients were ineligible (nine PCI, two PCI+cRT), leaving 42 randomized to PCI and 44 to PCI+cRT. At planned interim analysis the study …

Improving Cardiology Patient Flow In Nuclear Medicine, Kelly Haar, Hannah Sullivan, Kathryn Laverdiere, Nuclear Medicine Department, Haley Pelletier, Stephen Tyzik, Suneela Nayak, Ruth Hanselman

MaineHealth Maine Medical Center

At baseline, a nuclear medicine department found it difficult to complete cardiac stress tests within scheduled times. Using the performance improvement process, a nuclear medicine department looked to improve patient experience related to wait times for this test.

Two goals were identified and a root cause analysis was initiated. After identifying some process issues, two KPIs were developed to address them.

A root cause analysis identified some processing issues and two KPIs were instituted to address them.

As a result, one outcome was to hire an additional physician assistant to address the barrier of inadequate cardiology coverage. Next steps include …

Cascaded Multi-View Canonical Correlation (Camcco) For Early Diagnosis Of Alzheimer's Disease Via Fusion Of Clinical, Imaging And Omic Features, Asha Singanamalli, Haibo Wang, Anant Madabhushi, Michael Weiner, Paul Aisen, Ronald Petersen, Clifford Jack, William Jagust, John Trojanowki, Arthur Toga, Laurel Beckett, Robert Green, Andrew Saykin, John Morris, Leslie Shaw, Jeffrey Kaye, Joseph Quinn, Lisa Silbert, Betty Lind, Raina Carter, Sara Dolen, Lon Schneider, Sonia Pawluczyk, Mauricio Beccera, Liberty Teodoro, Bryan Spann, James Brewer, Helen Vanderswag, Adam Fleisher, Judith Heidebrink, Charles Smith, Greg A. Jicha, Peter A. Hardy, Partha Sinha, Elizabeth Oates, Gary Conrad

Neurology Faculty Publications

The introduction of mild cognitive impairment (MCI) as a diagnostic category adds to the challenges of diagnosing Alzheimer's Disease (AD). No single marker has been proven to accurately categorize patients into their respective diagnostic groups. Thus, previous studies have attempted to develop fused predictors of AD and MCI. These studies have two main limitations. Most do not simultaneously consider all diagnostic categories and provide suboptimal fused representations using the same set of modalities for prediction of all classes. In this work, we present a combined framework, cascaded multiview canonical correlation (CaMCCo), for fusion and cascaded classification that incorporates all diagnostic …

Radiologic Surveillance Of Patients With Viral Hepatitis, Saba Sohail

Department of Radiology

No abstract provided.

Metastatic Biomarkers In Synovial Sarcoma, Rosalia De Necochea-Campion, Lee M. Zuckerman, Hamid R. Mirshahidi, Shahrzad Khosrowpour, Chien-Shing Chen, Saied Mirshahidi

Library Articles and Research

Synovial sarcoma (SS) is an aggressive soft tissue sarcoma (STS) that typically occurs in the extremities near a joint. Metastatic disease is common and usually occurs in the lungs and lymph nodes. Surgical management is the mainstay of treatment with chemotherapy and radiation typically used as adjuvant treatment. Although chemotherapy has a positive impact on survival, the prognosis is poor if metastatic disease occurs. The biology of sarcoma invasion and metastasis remain poorly understood. Chromosomal translocation with fusion of the SYT and SSX genes has been described and is currently used as a diagnostic marker, although the full impact of …

Ureterovaginal Fistula Secondary To Retained Vaginal Foreign Body In A Young Girl, Anjum Bandarkar, Adebunmi O. Adeyiga, Eglal Shalaby-Rana

Radiology Faculty Publications

We present the case of a 13-year-old girl with a recurrent urinary tract infection, malodorous vaginal discharge, and urinary incontinence caused by a retained vaginal foreign body. The foreign body, an aerosol cap retained for over 2 years, resulted in the formation of a ureterovaginal fistula, an extremely rare complication. The critical value of ultrasound and magnetic resonance urography in delineating the foreign body, the fistulous tract, and the intraperitoneal urine leak is described. Through this unique diagnostic dilemma, we wish to highlight that the evaluation of persistent unusual urinary symptoms and vaginal discharge in a young girl must include …

New Findings, Classification And Long-Term Follow-Up Study Based On Mri Characterization Of Brainstem Encephalitis Induced By Enterovirus 71, Hongwu Zeng, Feiqiu Wen, Wenxian Huang, Yungen Gan, Weibin Zeng, Ranran Chen, Yanxia He, Yonker Wang, Zaiyi Liu, Changhong Liang, Kelvin K. L. Wong

Radiology Faculty Publications

Background To report the diversity of MRI features of brainstem encephalitis (BE) induced by Enterovirus 71. This is supported by implementation and testing of our new classification scheme in order to improve the diagnostic level on this specific disease.

Methods Neuroimaging of 91 pediatric patients who got EV71 related BE were hospitalized between March, 2010 to October, 2012, were analyzed retrospectively. All patients underwent pre- and post-contrast MRI scan. Thereafter, 31 patients were randomly called back for follow-up MRI study during December 2013 to August 2014. The MRI signal patterns of BE primary lesion were analyzed and classified according to …

Vena Cava Filter Utilization And Retrieval: A Quality Of Care Issue, Joshua Brown

Theses and Dissertations--Pharmacy

Vena cava filters (VCFs) are mechanical devices implanted in the inferior vena cava to trap thrombi from travelling to the pulmonary circulation, resulting in pulmonary embolism. VCFs are available as permanent or non-permanent, retrievable devices and are generally indicated for use in patients unable to receive systemic anticoagulation or at exceedingly high risk for pulmonary embolism (PE). Retrievable devices allow for removal of the VCF once the contraindication to anticoagulation or high risk of PE has abated. Since the introduction of retrievable VCFs in the early 2000’s, use of VCFs has increased three-fold, with >85% of all VCFs placed being …

Vascular Medicine: A ‘Primary’ Specialty, Mark W. Mewissen

Journal of Patient-Centered Research and Reviews

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