Research Publications

Kommerell’s Diverticulum and Stenosis of an Aberrant Left Subclavian Artery

Abstract Left aortic arch with an aberrant right subclavian artery is the most common anomaly of the aortic arch. Other rare anomalies include the occurrence of a right aortic arch with an aberrant left subclavian artery that has a diverticulum at its site of origin, known as Kommerell’s diverticulum. Right-sided aortic arch with an aberrant […]

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Giant aneurysm of aortopulmonary collateral.

Introduction We present an unusual case of a giant aneurysm of an aortopulmonary collateral, in a patient of Tetralogy of Fallot with pulmonary atresia on long-term conservative treatment. Aneurysm of aortopulmonary collateral is an extremely rare finding. Only a few similar cases have been reported in literature. Link for the publication: https://www.thieme-connect.com/products/ejournals/pdf/10.4103/0971-3026.32702.pdf To view or

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Contrast Material Extravasation:Appearances on Helical Computed Tomography

Abstract Contrast material extravasation on a computed tomography image invariably indicates disruption ofvascular structures, bowel, or the urinary tract. The pattern of contrast material extravasation often allowsexact anatomic localisation of the site of haemorrhage or perforation and contributes to effective intervention.In this pictorial essay, the helical computed tomography appearances of contrast material extravasation arehighlighted with

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Magnetic resonance imaging diagnosis of Mayer-Rokitansky-Kuster-Hauser syndrome

Abstract Magnetic resonance imaging (MRI) is the mainstay in the imaging evaluation of Mullerian agenesis, but is not routinely being utilized, particularly in India. Though sagittal MRI clearly demonstrates the absence or hypoplasia of the uterus and the axial images demonstrate the normal ovaries, it is the ability to identify and objectively evaluate other associated

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Multi- attribute Non-initializing Texture Reconstruction based ASM (MANTRA)

Abstract In this paper we present MANTRA (Multi-Attribute, Non-Initializing, Texture Reconstruction Based Active Shape Model) which incorporates a number of features that improve on the the popular Active Shape Model (ASM) algorithm. MANTRA has the following advantages over the traditional ASM model. (1) It does not rely on image intensity information alone, as it incorporates

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An Integrated magnetic- modal Prostate Segmentation Scheme by Combining Magnetic Resonance Spectroscopy and Active Shape Models

Abstract Segmentation of the prostate boundary on clinical images is useful in a large number of applications including calculatingprostate volume during biopsy, tumor estimation, and treatment planning. Manual segmentation of the prostate boundaryis, however, time consuming and subject to inter- and intra-reader variability. Magnetic Resonance (MR) imaging (MRI)and MR Spectroscopy (MRS) have recently emerged as

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Images: Malignant right coronary artery – 64-slice CTA

An asymptomatic 48-year-old man came to our institute for routine cardiac evaluation. Electrocardiogram, echocardiogram, and treadmill exercise testing were within normal limits. The patient opted for a CT angiogram (CTA) of the coronary arteries and was subsequently referred to our department. The angiogram was performed on a Light speed VCT (Wipro GE, Bangalore) using a

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Tuberculosis – The spoil sport

Dear Sir,This is in response to the article ëPictorial essay: PET/CT in tuberculosisí by Harkirat et al. We could not agree more with the opinion of the authors. When PET/CT is drawing so much attention from the whole medical fraternity, particularly due to its very high sensitivity in cancer staging and re-staging, a very common

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A Boosted Ensemble Scheme for Accurate Landmark Detection for Active Shape Models

Abstract In this paper we present WERITAS, which is based in part on the traditional Active Shape Model (ASM) segmentationsystem. WERITAS generates multiple statistical texture features, and finds the optimal weighted average of those texturefeatures by maximizing the correlation between the Euclidean distance to the ground truth and the Mahalanobis distanceto the training data. The

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