Research Publications – Page 5

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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Integrating Structural and Functional Imaging for Computer Assisted Detection of Prostate Cancer on Multi-Protocol in vivo 3 Tesla MRI

Abstract Screening and detection of prostate cancer (CaP) currently lacks an image-based protocol which is reflected in the high false negative rates currently associated with blinded sextant biopsies. Multi-protocol magnetic resonance imaging (MRI) offers high resolution functional and structural data about internal body structures (such as the prostate). In this paper we present a novel

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Teleradiology: The Indian perspective

Introduction The demand for diagnostic and image interpretation services in radiology is growing rapidly all over the world. This has highlighted two issues: the lack of adequate staff for providing interpretative coverage and the lack of specialty expertise. To some extent, these problems can be overcome by utilizing robust communication and image transfer systems to

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Helical CT Evaluation of Pulmonary Arteries and Aortopulmonary Collaterals in Pulmonary Atresia.

INTRODUCTION Tetrology of Fallot (TOF) comprises 3.9% of congenital heart disease,[1] of which approximately 5–10% have pulmonary atresia (PA) with ventricular septal defect (VSD). Two-thirds of the cases with PA are associated with major aorto pulmonary collateral arteries (MAPCAs).[2] Survival rate without surgery can be as low as 50% at 1 year of age and

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Reduction en-masse of inguinal hernia with strangulated obstruction

Abstract “Reduction en masse of inguinal hernia” means reduction/migration of a hernial sac into the properitoneal space. We report the CT findings in a case of reduction en masse with strangulated obstruction. CT scan demonstrated a hernial sac with fibrous constriction band at the neck, situated in the properitoneal space superior to the inguinal region,

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Practical Issues in PACS and Networking.

Abstract Picture Archiving and Communication System (PACS) is a key workflow tool in the functioning of radiology departments worldwide, today, and its utilization is rapidly growing in India. The key challenges in PACS implementation are related to vendor and feature selection, integration with the existing HIS, user training, maintenance and scalability to meet increasing demands.

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