Robert Chun Chen
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View article: Clinical decision support system impact on diagnostic imaging appropriateness and value-driven outcomes in a Singapore emergency department: Protocol of a pragmatic controlled before-after study
Clinical decision support system impact on diagnostic imaging appropriateness and value-driven outcomes in a Singapore emergency department: Protocol of a pragmatic controlled before-after study Open
Modern medicine relies heavily on diagnostic imaging because of its beneficial role in the healthcare chain. Imaging rates are increasing globally and are expected to continue to rise in the future. In tandem with this phenomenon is the in…
View article: Positivity rates and subsequent patient dispositions after utilisation of cervical spine imaging referral guidelines in Singapore
Positivity rates and subsequent patient dispositions after utilisation of cervical spine imaging referral guidelines in Singapore Open
Objectives This study seeks to evaluate the imaging characteristics and patient outcomes from the imaging recommendations of the ACR Appropriateness Criteria (AC), the ESR iGuide, and RCR iRefer. Materials and methods This retrospective st…
View article: Optimising design of clinical decision support systems and implementation strategies to improve radiological imaging appropriateness – A qualitative study in the emergency department
Optimising design of clinical decision support systems and implementation strategies to improve radiological imaging appropriateness – A qualitative study in the emergency department Open
Participants expressed their expectations regarding the design and features of CDSS as end users. Many strategies to optimise the implementation of CDSS in the ED for appropriate imaging exist and can encourage acceptance by ED physicians.
View article: Using evidence-based imaging referral guidelines to facilitate appropriate imaging: Are they all the same?
Using evidence-based imaging referral guidelines to facilitate appropriate imaging: Are they all the same? Open
The guidelines demonstrated slight agreement for X-ray cervical spine and almost perfect agreement for CT cervical spine, complicating audit process and influencing audit output. Multidisciplinary buy-in positively impacts CT cervical spin…
View article: Assessing context and readiness of emergency medicine physicians to promote evidence-based imaging referral guidelines: a mixed-methods study
Assessing context and readiness of emergency medicine physicians to promote evidence-based imaging referral guidelines: a mixed-methods study Open
Background Assessment of context and readiness to change are key components in the implementation of imaging referral guidelines. Purpose In line with JBI’s (formerly known as the Joanna Briggs Institute) approach to evidence implementatio…
View article: Differentiated Thyroid Cancer after Thyroidectomy
Differentiated Thyroid Cancer after Thyroidectomy Open
The widespread use of neck US and other imaging modalities has contributed to a phenomenon of increased detection of differentiated thyroid cancer (DTC). Most of these cancers remain indolent, without requiring surgical intervention. Nonet…
View article: Classification of Parkinson’s disease by deep learning on midbrain MRI
Classification of Parkinson’s disease by deep learning on midbrain MRI Open
Purpose Susceptibility map weighted imaging (SMWI), based on quantitative susceptibility mapping (QSM), allows accurate nigrosome-1 (N1) evaluation and has been used to develop Parkinson’s disease (PD) deep learning (DL) classification alg…
View article: Quantitative iron–neuromelanin MRI associates with motor severity in Parkinson's disease and matches radiological disease classification
Quantitative iron–neuromelanin MRI associates with motor severity in Parkinson's disease and matches radiological disease classification Open
Background Neuromelanin- and iron-sensitive MRI studies in Parkinson's disease (PD) are limited by small sample sizes and lack detailed clinical correlation. In a large case–control PD cohort, we evaluated the diagnostic accuracy of quanti…
View article: Unilateral abducens nerve avulsion injury following trauma
Unilateral abducens nerve avulsion injury following trauma Open
Dear Sir, While abducens nerve palsy is commonly seen in clinical practice, abducens nerve palsy secondary to an avulsion injury is uncommon. In a retrospective study documenting the causes of abducens nerve palsy, only up to 3.1% were att…
View article: Lymphomatosis Cerebri: A diagnostic dilemma
Lymphomatosis Cerebri: A diagnostic dilemma Open
Background Lymphomatosis cerebri (LC) is a rare manifestation of primary central nervous system lymphoma (PCNSL) with only a few cases reported in the literature, appearing as diffuse infiltrating process rather than a solitary mass. It is…
View article: Appropriateness of lumbar spine radiography and factors influencing imaging ordering patterns: paving the path toward value-driven health care
Appropriateness of lumbar spine radiography and factors influencing imaging ordering patterns: paving the path toward value-driven health care Open
The demand for diagnostic imaging continues to rise. Against the backdrop of rising health care costs and finite resources, this has prompted a paradigm shift toward value-driven patient care. Inappropriate imaging is a barrier toward achi…
View article: Healthcare worker stress, anxiety and burnout during the COVID-19 pandemic in Singapore: A 6-month multi-centre prospective study
Healthcare worker stress, anxiety and burnout during the COVID-19 pandemic in Singapore: A 6-month multi-centre prospective study Open
Aim The long-term stress, anxiety and job burnout experienced by healthcare workers (HCWs) are important to consider as the novel coronavirus disease (COVID-19) pandemic stresses healthcare systems globally. The primary objective was to ex…
View article: A survey of anxiety and burnout in the radiology workforce of a tertiary hospital during the COVID‐19 pandemic
A survey of anxiety and burnout in the radiology workforce of a tertiary hospital during the COVID‐19 pandemic Open
Introduction We aimed to study anxiety and burnout among Division of Radiological Sciences (RADSC) staff during the COVID‐19 pandemic and identify potential risk and protective factors. These outcomes were compared with non‐RADSC staff. Me…
View article: The Wandering Charm Needle
The Wandering Charm Needle Open
Charm needles, otherwise known as susuk, are small pin like objects worn subcutaneously, thought to bring magic powers, bringing health, wealth, beauty, and other benefits to the wearer. These talismans are fairly common in South-East Asia…
View article: Evaluating Potential Deceased Donor Renal Transplant Recipients for Asymptomatic COVID-19
Evaluating Potential Deceased Donor Renal Transplant Recipients for Asymptomatic COVID-19 Open
We present a case of asymptomatic coronavirus disease 2019 (COVID-19) diagnosed in a hemodialysis patient during deceased donor renal transplantation (DDRT) evaluation and discuss the challenges of excluding COVID-19 before transplantation…
View article: Extensive systemic metastases from primary central nervous system haemangiopericytoma
Extensive systemic metastases from primary central nervous system haemangiopericytoma Open
Primary intracranial tumours rarely metastasise outside of the central nervous system (CNS). This report describes a rare case of recurrent meningeal haemangiopericytoma with extensive systemic metastases, which eventually resulted in a fa…
View article: Extramedullary multiple myeloma with central nervous system and multiorgan involvement: Case report and literature review
Extramedullary multiple myeloma with central nervous system and multiorgan involvement: Case report and literature review Open
Multiple myeloma is a hematologic malignancy due to monoclonal plasma cell proliferation. It is usually confined to the bone marrow, although extramedullary involvement is known to occur in almost any organ system; myelomatous spread to th…