Richard E. Rossall

University of Alberta Hospital

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Co-Authors

Robert S. Fraser

Goddard Space Flight Center

M Haraphongse

University of Alberta Hospital

Bodh I. Jugdutt

University of Alberta

John C. Callaghan

University of Iowa Hospitals and Clinics

Tissa Kappagoda

University of California, Davis

Joseph Dvorkin

National University of General San Martín

Bruce Sussex

Clinical Trial Investigators

Liang Hsu

University of British Columbia

Simon J.K. Lee

University of Alberta

Manohara Senaratne

Grey Nuns Community Hospital

Cooperative Institutions

Alberta Hospital Edmonton

University of Alberta Hospital

University of Alberta

Health Sciences Centre

University of British Columbia

University of Toronto

University of California, Davis

Royal Alexandra Hospital

University of Illinois Chicago

University of Minnesota

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Diaphragmatic coronary lesion mimics significant coronary stenosis: A report of four cases

Catheterization and Cardiovascular Diagnosis (1985)

M Haraphongse Richard E. Rossall

Abstract Diaphragmatic coronary stenosis is a rare coronary angiographic finding. It gives rise to an appearance of relatively severe obstruction and can lead to unnecessary surgical intervention or PTCA. We described four patients with this type of stenosis in whom the lesions proved to be hemodynamically insignificant as judged by the presence of only minor pressure gradients across them.

10.1002/ccd.1810110209

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Citations (3)

Direct Endocardial Recording and Catheter Ablation of an Accessory Pathway in a Patient with Incessant Supraventricular Tachycardia

Pacing and Clinical Electrophysiology (1988)

John G. Webb Eugene Downar Louise Harris Richard E. Rossall

A patient presented with incessant supraventricular tachycardia due to a concealed accessory pathway. The His bundle electrocardiogram showed a large discrete accessory pathway potential following ventricular activation and resulting in retrograde atrial activation. Percutaneous catheter ablation in the region of the accessory pathway potential left nodal conduction intact but prevented retrograde activation of the atria. Symptomatic tachycardia has not recurred. Direct endocardial recording of accessory pathway potentials is rare hut may offer the opportunity for catheter ablation.

Supraventricular Tachycardia

Bundle of His

10.1111/j.1540-8159.1988.tb06270.x

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Citations (8)

The assessment of function of left ventricle and patency of aorta-coronary bypass after operation

Journal of Thoracic and Cardiovascular Surgery (1976)

M Haraphongse Carlos A. Basualdo Robert S. Fraser Richard E. Rossall

Collateral circulation

10.1016/s0022-5223(19)40450-9

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Citations (1)

Large air embolus complicating coronary angioplasty

Catheterization and Cardiovascular Diagnosis (1989)

M Haraphongse Richard E. Rossall

Abstract With the substantial advances in technology and further refinements in the technique of coronary angioplasty, the potential for and manifestations of complications may have changed from those observed in populations studied previously. We describe a rare complication of percutaneous transluminal coronary angioplasty (PTCA), a large air embolus obstructing coronary flow, which is related to the newer technology. The air embolus was successfully extracted by aspiration through the balloon angioplasty catheter.

Embolus

Balloon catheter

10.1002/ccd.1810170309

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Citations (21)

Risk stratification after percutaneous transluminal coronary angioplasty

Cardiovascular Drugs and Therapy (1990)

J. Burton M Haraphongse Liang Hsu C. T. Kappagoda Richard E. Rossall

Bypass surgery

10.1007/bf01856556

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Citations (2)

Intraventricular Blocks in Acute Myocardial Infarction

CHEST Journal (1975)

Carlos A. Basualdo M Haraphongse Richard E. Rossall

Intraventricular conduction

Bundle branch block

Abnormality

Clinical Significance

10.1378/chest.67.1.75

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Citations (15)

Long-term survival after tricuspid valve replacement

Journal of Thoracic and Cardiovascular Surgery (1977)

Bodh I. Jugdutt Robert S. Fraser Simon J.K. Lee Richard E. Rossall John C. Callaghan

Tricuspid insufficiency

Mitral valve replacement

10.1016/s0022-5223(19)41406-2

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Citations (63)

Obstruction of Inferior Vena Cava by a Persistent Eustachian Valve in a Young Adult

Journal of Clinical Pathology (1957)

Richard E. Rossall Roger Caldwell

Abstract

We show that deep learning techniques can be applied successfully to fiber tractography. Specifically, we use feed-forward and recurrent neural networks to learn the generation process of streamlines directly from diffusion-weighted imaging (DWI) data. Furthermore, we empirically study the behavior of the proposed models on a realistic white matter phantom with known ground truth. We show that their performance is competitive to that of commonly used techniques, even when the models are used on DWI data unseen at training time. We also show that our models are able to recover high spatial coverage of the ground truth white matter pathways while better controlling the number of false connections. In fact, our experiments suggest that exploiting past information within a streamline9s trajectory during tracking helps predict the following direction.

Ground truth

10.1136/jcp.10.1.40

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Citations (46)

Formation of new vascular channels in the lungs of a patient with secondary pulmonary hypertension

The Journal of Pathology (1958)

Richard E. Rossall Heidi Thompson

10.1002/path.1700760230

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Citations (13)

Hemodynamic changes following mitral valve replacement with the Starr-Edwards and Cutter-Smeloff prostheses

Journal of Thoracic and Cardiovascular Surgery (1971)

Simon J.K. Lee Alarcón Zaragoza John C. Callaghan Richard E. Rossall Robert S. Fraser

Mitral valve replacement

10.1016/s0022-5223(19)42171-5

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Citations (18)