Publications by authors named "Justin Tse"

In 2017, the American College of Radiology introduced the US Liver Imaging Reporting and Data System (LI-RADS) as a framework for US surveillance of patients at risk for developing hepatocellular carcinoma. This has aided in the standardization of technique, clinical reporting, patient management, data collection, and research. Emerging evidence has helped inform changes to the algorithm, now released as LI-RADS US Surveillance version 2024.

View Article and Find Full Text PDF

Acute cholecystitis is an inflammatory condition of the gallbladder typically incited by mechanical obstruction. Accurate diagnosis of this common clinical condition is challenging due to variable imaging appearances as well as overlapping clinical manifestations with biliary colic, acute hepatitis, pancreatitis, and cholangiopathies. In acute cholecystitis, increased dilatation and high intraluminal pressures lead to gallbladder inflammation and may progress to gangrenous changes, focal wall necrosis, and subsequent perforation.

View Article and Find Full Text PDF

Background: Short 'programmes' of professional development can have limited impact on clinical supervisors' practices. This paper reports on an innovative programme of professional development, implemented in a tertiary teaching hospital, that was designed to build clinical supervision capacity, improve the educational practice of frontline clinical supervisors and cultivate future educational leaders.

Approach: The programme was a partnership venture between St.

View Article and Find Full Text PDF

Background: Renal cell carcinoma (RCC) is a common cancer that varies in clinical behavior. Clear cell RCC (ccRCC) is the most common RCC subtype, with both aggressive and indolent manifestations. Indolent ccRCC is often low-grade without necrosis and can be monitored without treatment.

View Article and Find Full Text PDF
Article Synopsis
  • The study aims to evaluate how well LI-RADS (Liver Imaging Reporting and Data System) diagnoses liver cancer in patients with non-cirrhotic HCV infection, analyzing data from 66 observations involving adult patients.
  • Results show that while LI-RADS categories like LR-1 and LR-2 had no predictive value, LR-5 demonstrated high sensitivity (74-90%) and specificity (94-100%) for hepatic cellular carcinoma (HCC), making it a reliable indicator.
  • The inter-reader agreement among radiologists was substantial for final assessments, suggesting that LI-RADS can be effectively used for diagnosing malignancies in this patient group with excellent specificity.
View Article and Find Full Text PDF
Article Synopsis
  • A case involving a 75-year-old man showed severe hyponatremia (sodium at 117 mmol/L) alongside symptoms of viral meningitis, leading to confusion and lethargy, ultimately diagnosed as a WNV infection.
  • The case highlights the challenges in diagnosing WNV, particularly its link to hyponatremia, emphasizing the importance of supportive care, as there are no established specific treatments.
View Article and Find Full Text PDF

Hereditary renal mass syndromes, although rare, account for at least 3-5% of kidney cancers and significantly impact affected families. Accurate diagnosis and management by radiologists are crucial as these syndromes often present at imaging with both renal and extra-renal manifestations. The radiologist may be the first to recognize these stigmata at imaging, some of which satisfy major features for diagnosis and obviate the need for genetic testing.

View Article and Find Full Text PDF

Purpose: To assess the accuracy, reliability, and readability of publicly available large language models in answering fundamental questions on hepatocellular carcinoma diagnosis and management.

Methods: Twenty questions on liver cancer diagnosis and management were asked in triplicate to ChatGPT-3.5 (OpenAI), Gemini (Google), and Bing (Microsoft).

View Article and Find Full Text PDF

Objective: To assess the performance of computed tomography (CT)/magnetic resonance imaging (MRI) Liver Imaging Reporting and Data System (LI-RADS) among patients with non-cirrhotic steatotic liver disease (SLD).

Materials And Methods: This IRB-approved, retrospective study included 119 observations from 77 adult patients (36 women, 41 men; median 64 years) who underwent liver CT or MRI from 2010 to 2023. All patients had histopathologic evidence of SLD without cirrhosis.

View Article and Find Full Text PDF

Background: Weight bearing computed tomography (WBCT) utilizes cone beam CT technology to provide assessments of lower limb joint structures while they are functionally loaded. Grey-scale values indicative of X-ray attenuation that are output from cone beam CT are challenging to calibrate, and their use for bone mineral density (BMD) measurement remains debatable. To determine whether WBCT can be reliably used for cortical and trabecular BMD assessment, we sought to establish the accuracy of BMD measurements at the knee using modern WBCT by comparing them to measurements from conventional CT.

View Article and Find Full Text PDF

Gastrointestinal (GI) bleeding is the most common GI diagnosis leading to hospitalization within the United States. Prompt diagnosis and treatment of GI bleeding is critical to improving patient outcomes and reducing high healthcare utilization and costs. Radiologic techniques including computed tomography angiography, catheter angiography, computed tomography enterography, magnetic resonance enterography, nuclear medicine red blood cell scan, and technetium-99m pertechnetate scintigraphy (Meckel scan) are frequently used to evaluate patients with GI bleeding and are complementary to GI endoscopy.

View Article and Find Full Text PDF

Devices for the gastrointestinal tract are widely available and constantly advancing with less invasive techniques. They play a crucial role in diagnostic and therapeutic interventions and are commonly placed by interventional radiologists, gastroenterologists, and surgeons. These devices frequently appear in imaging studies, which verify their proper placement, identify any complications, or may be incidentally detected.

View Article and Find Full Text PDF

Introduction: Rheumatoid arthritis (RA) is commonly characterized by joint space narrowing. High-resolution peripheral quantitative computed tomography (HR-pQCT) provides unparalleled visualization and quantification of joint space in extremity joints commonly affected by RA, such as the 2nd and 3rd metacarpophalangeal joints. However, age, sex, and obesity can also influence joint space narrowing.

View Article and Find Full Text PDF

Objectives: Some patients undergo both computed tomography (CT) and ultrasound (US) sequentially as part of the same evaluation for acute cholecystitis (AC). Our goal was to perform a systematic review and meta-analysis comparing the diagnostic performance of US and CT in the diagnosis of AC.

Materials And Methods: Databases were searched for relevant published studies through November 2023.

View Article and Find Full Text PDF
Article Synopsis
  • A systemic review and meta-analysis examined the effectiveness of hepatobiliary phase (HBP) MRI in distinguishing beta-catenin-mutated hepatocellular adenomas (β-HCAs) from other types of hepatocellular adenomas (HCAs).
  • The study included 266 patients with 397 total HCAs, revealing a significantly higher prevalence of HBP iso- to hyperintensity in β-HCAs (72.3%) compared to non-β-HCAs (6.3%).
  • The pooled sensitivity and specificity of HBP MRI for detecting β-HCAs were 72.3% and 93.7%, respectively, although specificity showed high variability due to one outlier study.
View Article and Find Full Text PDF

Gastrointestinal (GI) bleeding is the most common GI diagnosis leading to hospitalization within the United States. Prompt diagnosis and treatment of GI bleeding is critical to improving patient outcomes and reducing high health care utilization and costs. Radiologic techniques including CT angiography, catheter angiography, CT enterography, MR enterography, nuclear medicine red blood cell scan, and technetium-99m pertechnetate scintigraphy (Meckel scan) are frequently used to evaluate patients with GI bleeding and are complementary to GI endoscopy.

View Article and Find Full Text PDF

Objectives: Magnetic resonance imaging (MRI) is the modality of choice for rectal cancer initial staging and restaging after neoadjuvant chemoradiation. Our objective was to perform a meta-analysis of the diagnostic performance of the split scar sign (SSS) on rectal MRI in predicting complete response after neoadjuvant therapy.

Methods: MEDLINE, EMBASE, and Cochrane databases were searched for relevant published studies through June 2023.

View Article and Find Full Text PDF

Purpose: To assess discrepancies in current imaging recommendations for hematuria among North American societies: American College of Radiology (ACR), American Urological Association (AUA), and Canadian Urological Association (CUA).

Methods: The latest available ACR Appropriateness Recommendations, AUA guidelines, and CUA guidelines were reviewed. AUA and CUA guidelines imaging recommendations by variants and level of appropriateness were converted to match the style of ACR.

View Article and Find Full Text PDF

Bone erosions are a pathological feature of several forms of inflammatory arthritis including rheumatoid arthritis (RA). The increased presence and size of erosions are associated with poor outcomes, joint function, and disease progression. High-resolution peripheral quantitative computed tomography (HR-pQCT) provides unparalleled in vivo visualization of bone erosions.

View Article and Find Full Text PDF