A5047062061- Vasculitis and related conditions
- Otitis Media and Relapsing Polychondritis
- Systemic Lupus Erythematosus Research
- Shoulder and Clavicle Injuries
- Nerve Injury and Rehabilitation
- Ocular Diseases and Behçet’s Syndrome
- Nonmelanoma Skin Cancer Studies
- Neurofibromatosis and Schwannoma Cases
- Brain Metastases and Treatment
- Retinal and Optic Conditions
- Voice and Speech Disorders
- Adrenal and Paraganglionic Tumors
- Cerebral Venous Sinus Thrombosis
- Otolaryngology and Infectious Diseases
- Sarcoidosis and Beryllium Toxicity Research
- Colorectal Cancer Screening and Detection
- MRI in cancer diagnosis
- Tumors and Oncological Cases
- Ear Surgery and Otitis Media
- Shoulder Injury and Treatment
- Head and Neck Surgical Oncology
- Uterine Myomas and Treatments
- Genetic and rare skin diseases.
- Lymphatic System and Diseases
- Parkinson's Disease and Spinal Disorders
McMaster University
2013-2024
St. Joseph's Hospital
2005-2024
St. Joseph’s Healthcare Hamilton
2005-2024
Hamilton Health Sciences
2005
With advances in modern imaging technology, the presentation of an incidentally found adrenal mass (or incidentaloma) has become increasingly common management scenario for endocrinologists and urologists. The prevalence incidentalomas (AI) been reported as high 8% autopsy series 4% radiologic series.1,2 As improved techniques available frequency abdominal increases, is expected to continue escalating, approaching series. Also concerning evidence supporting increased with age, risk finding...
To examine the concordance between high-resolution magnetic resonance imaging (MRI) of scalp arteries and temporal artery biopsy for diagnosis giant cell arteritis (GCA).We conducted a prospective cohort study patients with suspected GCA. Participants underwent high-field 3T MRI followed by biopsy. Arterial wall thickness enhancement on multiplanar postcontrast T1-weighted spin-echo images were graded according to published severity scale (range 0-3). findings compared results American...
The peripheral nerves of the upper limb are affected by a number entrapment and compression neuropathies. These discrete syndromes involve brachial plexus as well musculocutaneous, axillary, suprascapular, ulnar, radial, median nerves. Clinical examination electrophysiologic studies traditional mainstay diagnostic work-up; however, ultrasonography magnetic resonance imaging provide spatial information regarding nerve its surroundings, often assisting in narrowing differential diagnosis...
Objective Acute visual impairment is the most feared complication of giant cell arteritis (GCA) but challenging to predict. Magnetic resonance imaging (MRI) evaluates orbital pathology not visualized by an ophthalmologic examination. This study combined and cranial vessel wall MRI assess both disease activity in patients with GCA, including without symptoms. Methods Patients suspected active GCA who underwent were included. In 14 patients, repeat over 12 months assessed sensitivity change....
Spontaneous CSF-venous fistulas may be present in up to one-fourth of patients with spontaneous intracranial hypotension. This is a recently discovered type CSF leak, and much remains unknown about these fistulas. Spinal are usually seen coexistence spinal meningeal diverticulum, suggesting the presence an underlying structural dural weakness at proximal portion fistula. The authors now report soft-tissue venous/venolymphatic malformations associated 2 hypotension, role for distal venous...
Background Cholesteatoma is a destructive, erosive growth of keratinizing squamous epithelium in the middle ear cleft. Following treatment with canal wall-up (CWU) tympanomastoidectomy, surveillance residual and recurrent disease has traditionally been achieved through second look tympanotomy following initial procedure. Historically, MRI sequences have inadequate at differentiating between granulation tissue, inflammation, cholesteatoma. Recent literature shown diffusion-weighted magnetic...
Differentiating arteritic anterior ischaemic optic neuropathy (A-AION) due to giant cell arteritis (GCA) from non-arteritic (NA-AION) may pose a diagnostic challenge. Our study aimed assess the use of standard orbital MRI in distinguishing ocular manifestations GCA NA-AION.
BACKGROUND: Quantitative cell counts in sputum provide an accurate assessment of the type and severity bronchitis. OBJECTIVE: To examine whether could identify bronchiectasis patients with recurrent METHODS: A retrospective survey a clinical database (January 2004 to January 2005) quantitative from selected expectorate obstructive airways diseases was used predictors using ROC curves. This prospectively evaluated (February 2005 April 2008) high-resolution computed tomography scans thorax...
To assess the efficacy of a variety oral contrast agents in obtaining small bowel distention for computed tomography (CT) enterography examinations.A retrospective study was developed to quantitatively luminal distension during CT by using 4 agents, which included water, Metamucil, polyethylene glycol, and lactulose. A total 256 patients were enrolled 64 individuals each regimen. The widest loop quadrants on representative coronal images separately measured distension. Overall greatest...
The aim of this study was to evaluate the accuracy multidetector computed tomography (MDCT) in detection parathyroid adenoma and hyperplasia setting primary hyperparathyroidism.Records 48 patients with biochemically confirmed hyperparathyroidism, who underwent preoperative imaging 16- or 64-slice contrast-enhanced MDCT subsequent successful parathyroidectomy over a 3-year period, were reviewed. Two radiologists, blinded operative histologic findings, independently evaluated multiplanar...
Abstract Objectives Imaging modalities have become common in evaluating patients for a possible diagnosis of GCA. This study seeks to contextualize how temporal arterial magnetic resonance angiography (TA-MRA) can be used facilitating the Methods A retrospective cohort was performed on who had been previously referred rheumatologist evaluation GCA Hamilton, Ontario, Canada. Data including clinical features, inflammatory markers, imaging, and biopsy results were extracted. Multivariable...
There are a number of T1- and T2-based dynamic contrast-enhanced magnetic resonance imaging pharmacokinetic modeling approaches to study cancer microvasculature. Alternatively, model-free offer an easy, quantitative assessment microcirculation. In this work, we investigate 6-parameter approach applied T2*-weighted echo-planar bolus response curve. We tested new on small cohort patients with clinically diagnosed primary rectal carcinoma before adjuvant chemoradiotherapy surgical excision....
A 26-year-old woman presented with painless vision loss secondary to hypertensive retinopathy in the setting of Takayasu arteritis and renal artery stenosis.