Jonathan C. L. Rodrigues

Learn More
AIM To investigate the effects of a test bolus protocol contrast medium administration on diagnostic image quality in computed tomography pulmonary angiography (CTPA). MATERIALS AND METHODS Fifty patients referred for exclusion of pulmonary embolism underwent CTPA using a test bolus protocol CTPA at 120 kVp and were compared with 50 patients undergoing(More)
The differential diagnosis for lesions causing neural foraminal widening is vast. The majority are solitary benign peripheral nerve sheath tumours, such as neurofibromas or schwannomas. We present a case of a rare cause of neural foraminal expansion secondary to a posterior thoracic extradural angiolipoma. We describe the presence of chemical shift artefact(More)
Fungi cause a wide spectrum of fungal diseases of the upper and lower airways. There are three main phyla involved in allergic fungal disease: (1) Ascomycota (2) Basidiomycota (3) Zygomycota. Allergic fungal rhinosinusitis (AFRS) causes chronic rhinosinusitis symptoms and is caused predominantly by Aspergillus fumigatus in India and Bipolaris in the United(More)
Background Brainstem hypoperfusion may evoke systemic hypertension as a mechanism to boost cerebral blood flow: the selfish brain hypothesis. This notion is supported by evidence of vertebral artery hypoplasia (VAH) in hypertensive rat models. We determined the prevalence of anatomical variations of posterior cerebral circulation which could predispose to(More)
OBJECTIVE We report a novel, computed tomography guided treatment for autophony associated with a patulous eustachian tube. METHODS Case report and literature review of the management of patulous eustachian tube. RESULTS A 36-year-old woman presented with disabling autophony. Otoscopic examination revealed a poorly mobile right tympanic membrane. High(More)
OBJECTIVE Myocardial intracellular/extracellular structure and aortic function were assessed among hypertensive left ventricular (LV) phenotypes using cardiovascular magnetic resonance (CMR). METHODS An observational study from consecutive tertiary hypertension clinic patients referred for CMR (1.5 T) was performed. Four LV phenotypes were defined: (1)(More)
AIMS We sought to determine the prevalence of asymmetric hypertensive heart disease (HHD) overlapping morphologically with hypertrophic cardiomyopathy (HCM) and to determine predictors of this pattern of hypertensive remodelling. METHODS AND RESULTS One hundred and fifty hypertensive patients underwent 1.5 T cardiovascular magnetic resonance imaging.(More)
Retroclival haematomas are rare entity and they are mostly caused by trauma. There has been only one case published to have a retroclival haematoma following pituitary apoplexy. We present a patient diagnosed with pituitary apoplexy who was found to have acute subdural retroclival haematoma on the MRI.
Total parenteral nutrition (TPN) provides all nutrition intravenously. Although TPN therapy has grown enormously, it causes significant complications, including gut and hepatic dysfunction. Current models use animal tethering which is unlike ambulatory human TPN delivery and is cost prohibitive. We hypothesize that using ultramobile infusion pumps, TPN can(More)
The purpose of this study was to determine whether performing the test bolus (TB) of computed tomography coronary angiography (CTCA) and computed tomography pulmonary angiography (CTPA) at 80 kVp reduces dose without compromising diagnostic quality. An 80 kVp TB protocol for CTCA and CTPA was retrospectively compared to standard TB protocol (non-obese: 100(More)