Publications by authors named "Danielle Toussie"

Cardiomyopathies represent a diverse group of heart diseases that can be broadly classified into ischemic and nonischemic etiologies, each requiring distinct diagnostic approaches. Noninvasive imaging modalities, such as computed tomography (CT) and magnetic resonance imaging (MRI), play a pivotal role in the diagnosis, risk stratification, and prognosis of these conditions. This paper reviews the characteristic CT and MRI findings associated with ischemic cardiomyopathy (ICM) and nonischemic cardiomyopathy (NICM), focusing on their ability to provide detailed anatomical, functional, and tissue characterization.

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  • Radiation therapy is a key component in treating lung cancer and requires radiologists to recognize both typical and atypical imaging outcomes after treatment.
  • The review discusses radiation therapy methods and guidelines, supplemented by numerous imaging examples.
  • It emphasizes the use of CT scans to differentiate between normal post-radiation effects like pneumonitis and fibrosis, and other complications such as infections or cancer recurrence.
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Subsolid nodules are heterogeneously appearing and behaving entities, commonly encountered incidentally and in high-risk populations. Accurate characterization of subsolid nodules, and application of evolving surveillance guidelines, facilitates evidence-based and multidisciplinary patient-centered management.

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Imaging plays a major role in the care of the intensive care unit (ICU) patients. An understanding of the monitoring devices is essential for the interpretation of imaging studies. An awareness of their expected locations aids in identifying complications in a timely manner.

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Purpose: Apical pleuroparenchymal scarring (APPS) is commonly seen on chest computed tomography (CT), though the imaging and clinical features, to the best of our knowledge, have never been studied. The purpose was to understand APPS's typical morphologic appearance and associated clinical features.

Patients And Methods: A random generator selected 1000 adult patients from all 21516 chest CTs performed at urban outpatient centers from January 1, 2016 to December 31, 2016.

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Purpose: The purpose of this study was to identify differences in imaging features between patients with confirmed right middle lobe (RML) torsion compared to those suspected yet without torsion.

Materials And Methods: This retrospective study entailing a search of radiology reports from April 1, 2014, to April 15, 2021, resulted in 52 patients with suspected yet without lobar torsion and 4 with confirmed torsion, supplemented by 2 additional cases before the search period for a total of 6 confirmed cases. Four thoracic radiologists (1 an adjudicator) evaluated chest radiographs and computed tomography (CT) examinations, and Fisher exact and Mann-Whitney tests were used to identify any significant differences in imaging features (P<0.

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Objectives: To investigate the incidence, risk factors, and outcomes of barotrauma (pneumomediastinum and subcutaneous emphysema) in mechanically ventilated COVID-19 patients. To describe the chest radiography patterns of barotrauma and understand the development in relation to mechanical ventilation and patient mortality.

Methods: We performed a retrospective study of 363 patients with COVID-19 from March 1 to April 8, 2020.

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  • Acute pulmonary embolism (PE) is a serious condition identified through specific imaging techniques that can greatly impact patient care.
  • Properly diagnosing the severity and extent of PE is crucial for effective treatment and improving patient outcomes.
  • The review discusses challenges in radiology when diagnosing PE and explores how artificial intelligence tools can assist in overcoming these difficulties.
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The novel coronavirus disease 2019 (COVID-19) emerged as the source of a global pandemic in late 2019 and early 2020 and quickly spread throughout the world becoming one of the worst pandemics in recent history. This chapter reviews the most up to date radiological literature and outlines the utility of thoracic imaging in COVID-19, defining both the common and the less typical imaging appearances during the acute and subacute phases of COVID-19. The short term complications and the long term sequela will also be discussed in the context of radiology, including pulmonary emboli, acute respiratory distress syndrome, superimposed infections, barotrauma, cardiac manifestations, pulmonary parenchymal scarring and fibrosis.

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Objective: To evaluate the influence of coronary artery dominance on observed coronary artery calcification burden in outpatients presenting for coronary computed tomography angiography (CCTA).

Methods: A 12-month retrospective review was performed of all CCTAs at a single institution. Coronary arterial dominance, Agatston score and presence or absence of cardiovascular risk factors including hypertension (HTN), hyperlipidemia (HLD), diabetes and smoking were recorded.

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  • A study aimed to develop a deep learning algorithm to predict the severity of COVID-19 based on chest radiographs and clinical outcomes.
  • It analyzed data from 338 patients aged 21-50 and trained the algorithm with information from both imaging and existing clinical variables.
  • Results showed that combining radiograph findings with clinical data significantly improved predictions for patient outcomes like intubation and survival rates.
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  • The article reviews imaging features of COVID-19 using various methods like radiography, CT, MRI, PET/CT, and ultrasound.
  • It emphasizes the disease's primary impact on lung tissue, specifically resulting in pneumonia.
  • The goal is to improve radiologists' knowledge for better diagnosis and management of COVID-19 cases.
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Article Synopsis
  • - Recent research indicates that coronary artery calcification (CAC) can help predict severe outcomes in COVID-19 patients, particularly with comorbid cardiovascular disease.
  • - In a study of 180 COVID-19 patients, those with detected CAC were significantly more likely to require intubation or face mortality, with severe CAC showing even higher risks.
  • - The study concluded that both the severity of CAC and the number of arteries affected correlated with worse outcomes, while prior surgeries like coronary artery bypass grafting or stenting did not significantly impact patient mortality or intubation rates.
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Background: Chest radiography (CXR) often is performed in the acute setting to help understand the extent of respiratory disease in patients with COVID-19, but a clearly defined role for negative chest radiograph results in assessing patients has not been described.

Research Question: Is portable CXR an effective exclusionary test for future adverse clinical outcomes in patients suspected of having COVID-19?

Study Design And Methods: Charts of consecutive patients suspected of having COVID-19 at five EDs in New York City between March 19, 2020, and April 23, 2020, were reviewed. Patients were categorized based on absence of findings on initial CXR.

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Purpose: To evaluate the Right Upper Lobe Bronchus Angle (RUL-BA) on chest CT in patients with Stage 4 sarcoidosis and compare to others with non-fibrotic sarcoidosis.

Methods: IRB approval was obtained for review of all chest CT scans performed from January 2015 through December 2017 that contained the word sarcoidosis using the computer program Montage. The most recent CT scans of 633 people were reviewed.

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Purpose: We describe the presenting characteristics and hospital course of 11 novel coronavirus (COVID-19) patients who developed spontaneous subcutaneous emphysema (SE) with or without pneumomediastinum (SPM) in the absence of prior mechanical ventilation.

Materials And Methods: A total of 11 non-intubated COVID-19 patients (8 male and 3 female, median age 61 years) developed SE and SPM between March 15 and April 30, 2020 at a multi-center urban health system in New York City. Demographics (age, gender, smoking status, comorbid conditions, and body-mass index), clinical variables (temperature, oxygen saturation, and symptoms), and laboratory values (white blood cell count, C-reactive protein, D-dimer, and peak interleukin-6) were collected.

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As the 2019 novel coronavirus disease (COVID-19) continues to spread, some patients are presenting with abdominal symptoms without respiratory complaints. Our case series documents four patients who presented with abdominal symptoms whose abdominopelvic CT revealed incidental pulmonary parenchymal findings in the imaged lung bases and were subsequently confirmed positive for COVID-19 via laboratory testing. It remains to be seen whether these patients will eventually develop respiratory symptoms.

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Background Chest radiography has not been validated for its prognostic utility in evaluating patients with coronavirus disease 2019 (COVID-19). Purpose To analyze the prognostic value of a chest radiograph severity scoring system for younger (nonelderly) patients with COVID-19 at initial presentation to the emergency department (ED); outcomes of interest included hospitalization, intubation, prolonged stay, sepsis, and death. Materials and Methods In this retrospective study, patients between the ages of 21 and 50 years who presented to the ED of an urban multicenter health system from March 10 to March 26, 2020, with COVID-19 confirmation on real-time reverse transcriptase polymerase chain reaction were identified.

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