Open Access. Powered by Scholars. Published by Universities.®

Radiology Commons

Open Access. Powered by Scholars. Published by Universities.®

1,658 Full-Text Articles 5,391 Authors 454,853 Downloads 89 Institutions

All Articles in Radiology

Faceted Search

1,658 full-text articles. Page 64 of 65.

Simple Linear Measurements Of The Normal Liver: Interobserver Agreement And Correlation With Hepatic Volume On Mri, Sachit K. Verma, Kristen McClure, Laurence Parker, Donald G. Mitchell, Manisha Verma, Diane Bergin 2010 Thomas Jefferson University

Simple Linear Measurements Of The Normal Liver: Interobserver Agreement And Correlation With Hepatic Volume On Mri, Sachit K. Verma, Kristen Mcclure, Laurence Parker, Donald G. Mitchell, Manisha Verma, Diane Bergin

Department of Radiology Faculty Papers

OBJECTIVE. To retrospectively evaluate interobserver agreement for 4 manually determined linear hepatic measurements on magnetic resonance imaging (MRI) and correlation of these linear measurements with hepatic volume.

MATERIALS AND METHODS. Hepatic linear measurements: midhepatic point craniocaudad (MHP CC), maximum CC to liver tip (Max CC), maximum transverse and MHP anteroposterior (AP) dimensions were performed on 116 patients without liver disease who had 1.5 T MR imaging of the abdomen.Linear measurements: MHP CC, Max CC, maximum transverse, MHP AP dimensions and products of CC with MHP AP dimension were correlated with hepatic volumes. Correlation analysis (Pearson product moment correlation ...


Hydatid Disease Of The Breast, Imrana Masroor, M. Azeemuddin, S. Khan, A. Barakzai 2010 Aga Khan University

Hydatid Disease Of The Breast, Imrana Masroor, M. Azeemuddin, S. Khan, A. Barakzai

Department of Radiology

Cystic hydatid disease is caused by the parasite Echinococcus granulosus. Humans are the accidental intermediate hosts of this organism. Hydatid disease is endemic in countries in which raising sheep and cattle constitutes an important means of livelihood. The most commonly affected organs are the liver and lungs. Involvement of the kidney, bone, brain and other organs is rare. Breast involvement in this disease is also very rare. A case of isolated hydatid cyst of the breast is presented, along with a review of the literature and a discussion on the pertinent clinical and radiological aspects of the disease.


Development Of A Functional Mri Olfactory Protocol, Jeremy Mangum 2010 University of Nevada Las Vegas

Development Of A Functional Mri Olfactory Protocol, Jeremy Mangum

UNLV Theses, Dissertations, Professional Papers, and Capstones

Many people can spend a few days with an acute form of sinusitis, a stuffy nose, or sinus congestion that inhibits their ability to smell, but there are fourteen million Americans over the age of fifty that suffer from some form of chronic olfactory dysfunction. Some neurological disorders such as Parkinson's disease and Alzheimer's disease have demonstrated that olfactory dysfunction is a frequent and early sign. While these diseases have no known cure, there are medicines that exist to slow the progression of such debilitating illnesses. By identifying such diseases in their early stages, we can improve the ...


Tips And Tricks For The Trauma Patient., Anthony D Goei, Brian H Ching, Mark W Meyermann, Timothy Nunez, David Sacks 2010 Reading Hospital

Tips And Tricks For The Trauma Patient., Anthony D Goei, Brian H Ching, Mark W Meyermann, Timothy Nunez, David Sacks

Reading Hospital Interventional Radiology

Interventions on the trauma patient are an essential component of the complete scope of care that is provided to the multiply injured patient today. The active participation by the interventional radiologist along the entire spectrum of clinical care is very important to optimize patient outcomes. Suggestions on how to establish a clinical presence are presented. A few of the newer concepts and terminology applicable to trauma care are reviewed. Tips useful in the trauma room, in the interventional radiology suite, and during the postprocedural period are discussed.


Magnetic Resonance Imaging Findings In Patients With Schizophrenia, Waseem Akhtar, Haider A Naqvi, Sajjad Hussain, Arif Ali, Nadeem Ahmad 2010 Aga Khan University

Magnetic Resonance Imaging Findings In Patients With Schizophrenia, Waseem Akhtar, Haider A Naqvi, Sajjad Hussain, Arif Ali, Nadeem Ahmad

Department of Radiology

OBJECTIVE: To determine structural abnormalities in the brain of patients with schizophrenia by Magnetic Resonance Imaging (MRI).

STUDY DESIGN: Comparative study.

PLACE AND DURATION OF STUDY: The Departments of Radiology and Psychiatry, the Aga Khan University Hospital, Karachi, from January 2007 to June 2008.

METHODOLOGY: Thirty-three cases of schizophrenia (n=33) and thirty-three age-matched controls, (n=33) were enrolled for this study. Screening Magnetic Resonance Imaging (MRI) of brain was done in order to see structural changes in brain matter. Findings were compared among groups using chi-square and Fisher's exact test with significance at p < 0.05.

RESULTS: Among the total ...


Neovascularity Patterns In Breast Carcinoma: Correlation Of Doppler Ultrasound Features With Sonographic Tumour Morphology, Riffat Shaheen, Saba Sohail, Kauser Jahan Siddiqui 2010 Dow University of Health Sciences / Civil Hospital, Karachi

Neovascularity Patterns In Breast Carcinoma: Correlation Of Doppler Ultrasound Features With Sonographic Tumour Morphology, Riffat Shaheen, Saba Sohail, Kauser Jahan Siddiqui

Department of Radiology

Objective: To determine the association and correlation between morphologic features of breast cancer on gray scale ultrasound, and vascularity patterns and indices on color and spectral Doppler ultrasound.
Study design: Cross-sectional, analytical study.
Place and duration of study: Department of Radiology, Dow University of Health Sciences and Civil Hospital, Karachi, from August 2006 to June 2007.
Methodology: Fifty adult female patients with histopathological proven breast cancer underwent ultrasound for evaluation of morphologic features on gray scale mode; vascularity patterns on color Doppler scan and flow indices measurement on spectral Doppler ultrasound. Regression analysis was conducted to determine correlation between the ...


Synthetic Magnetic Resonance Imaging Revisited, Ranjan Maitra, John J. Riddles 2010 Iowa State University

Synthetic Magnetic Resonance Imaging Revisited, Ranjan Maitra, John J. Riddles

Statistics Publications

Synthetic magnetic resonance (MR) imaging is an approach suggested in the literature to predict MR images at different design parameter settings from at least three observed MR scans. However, performance is poor when no regularization is used in the estimation and otherwise computationally impractical to implement for three-dimensional imaging methods. We propose a method which accounts for spatial context in MR images by the imposition of a Gaussian Markov Random Field (MRF) structure on a transformation of the spin-lattice relaxation time, the spin-spin relaxation time and the proton density at each voxel. The MRF structure is specified through a Matrix ...


Ct And Mri Features Following Uterine Fibroid Embolization, Sachit Verma MD, Carin F. Gonsalves MD, Oksana H. Baltarowich MD, Donald G. Mitchell MD, Anna Lev-Toaff MD, Diane Bergin MD 2010 Thomas Jefferson University

Ct And Mri Features Following Uterine Fibroid Embolization, Sachit Verma Md, Carin F. Gonsalves Md, Oksana H. Baltarowich Md, Donald G. Mitchell Md, Anna Lev-Toaff Md, Diane Bergin Md

Department of Radiology Faculty Papers

Uterine artery embolization (UAE) is an effective treatment for symptomaticuterine fibroids. Magnetic resonance (MR) imaging is typically employed to evaluate the uterus following UAE for fibroid infarction, size, location change, persistent enhancement, changes in adenomyosis and uterine necrosis. Variable pattern of calcification on computed tomography (CT) can differentiate embolic particles and fibroid involution. CT following UAE may be requested because of acute pelvic pain or chest discomfort or pyrexia and/or for complications that may require treatment in acute phase. Visualization of gas in uterus and uterine vessels following UAE is an expected finding that should not be misinterpreted as ...


Postmortem Computed Tomography For Diagnosis Of Cause Of Death In Male Prisoners, Saba Sohail, Farhat Hussain Mirza, Qamar Salam Khan 2010 Aga Khan University

Postmortem Computed Tomography For Diagnosis Of Cause Of Death In Male Prisoners, Saba Sohail, Farhat Hussain Mirza, Qamar Salam Khan

Department of Radiology

Objective: To determine the utility of postmortem CT (PMCT) examination in establishing the cause of death among male prisoners dying in Karachi jails.
Methods: A descriptive study was carried out from February 2006 to September 2007, CT Scan section, Civil Hospital Karachi and the Mortuary, Dow Medical College, Dow University of Health Sciences, Karachi. Adult male prisoners dying in the Karachi central prison and referred to the study setting for determining the cause of death for medico legal purpose were included. Female prisoners and those cases where the final report of cause of death was not available were excluded. CT ...


A Doppler-Based Evaluation Of Peripheral Lower Limb Arterial Insufficiency In Diabetes Mellitus, Riffat Shaheen, Saba Sohail 2010 Dow University of Health Sciences and Civil Hospital, Karachi

A Doppler-Based Evaluation Of Peripheral Lower Limb Arterial Insufficiency In Diabetes Mellitus, Riffat Shaheen, Saba Sohail

Department of Radiology

Objective: To determine the frequency, level and flow patterns of lower limb arterial insufficiency in diabetic patients on Doppler ultrasound study.
Study Design: Cross-sectional study.
Place and Duration of Study: Radiology Department, Civil Hospital, Karachi, from February 2007 to September 2008.
Methodology: One hundred adult diabetic patients with suspected peripheral vascular insufficiency irrespective of gender were included. Demographic data, presenting complaints, treatment history, and level of HbA1c were recorded. Doppler evaluated arterial status and ankle brachial index (ABI) were recorded on proforma. Statical analysis were done on SPSS version 12.
Results: The mean HbA1c was 8.4 ± 1.4gm/dl ...


Biological Impact Of Geometric Uncertainties: What Margin Is Needed For Intra-Hepatic Tumors?, Hsiang-Chi Kuo, Wen-Shan Liu, Andrew Wu, Dennis Mah, Keh-Shih Chuang, Linda Hong, Ravi Yaparpalvi, Chandan Guha, Shalom Kalnicki 2010 Department of Radiation Oncology, Montefiore Medical Center, USA, Department Biomedical Engineering and Environmental Sciences, National Tsing Hua University, Taiwan

Biological Impact Of Geometric Uncertainties: What Margin Is Needed For Intra-Hepatic Tumors?, Hsiang-Chi Kuo, Wen-Shan Liu, Andrew Wu, Dennis Mah, Keh-Shih Chuang, Linda Hong, Ravi Yaparpalvi, Chandan Guha, Shalom Kalnicki

Department of Radiologic Sciences Faculty Papers

BACKGROUND: To evaluate and compare the biological impact on different proposed margin recipes for the same geometric uncertainties for intra-hepatic tumors with different tumor cell types or clinical stages. METHOD: Three different margin recipes based on tumor motion were applied to sixteen IMRT plans with a total of twenty two intra-hepatic tumors. One recipe used the full amplitude of motion measured from patients to generate margins. A second used 70% of the full amplitude of motion, while the third had no margin for motion. The biological effects of geometric uncertainty in these three situations were evaluated with Equivalent Uniform Doses ...


A Review Of Autoimmune Diseases Associated With Cancer, Patricia Tai, Edward Yu, Kurian Joseph, Thomas Miale 2010 University of Saskatchewan

A Review Of Autoimmune Diseases Associated With Cancer, Patricia Tai, Edward Yu, Kurian Joseph, Thomas Miale

Oncology Publications

The focus of this review is on the relationships between autoimmune diseases and cancer from two closely related perspectives: 1.Those autoimmune diseases which are often associated with malignancies. 2.Those prevalent cancers which may increase the risks of developing autoimmune disorders. The review concludes with a brief discussion of some selected innovative approaches to cancer immunotherapy.


Imaging Spontaneous Mmtvneu Transgenic Murine Mammary Tumors: Targeting Metabolic Activity Versus Genetic Products., Mathew L Thakur, Devakumar Devadhas, Kaijun Zhang, Richard G Pestell, Chenguang Wang, Peter McCue, Eric Wickstrom 2010 Thomas Jefferson University

Imaging Spontaneous Mmtvneu Transgenic Murine Mammary Tumors: Targeting Metabolic Activity Versus Genetic Products., Mathew L Thakur, Devakumar Devadhas, Kaijun Zhang, Richard G Pestell, Chenguang Wang, Peter Mccue, Eric Wickstrom

Department of Radiology Faculty Papers

INTRODUCTION: Despite the great strides made in imaging breast cancer (BC) in humans, the current imaging modalities miss up to 30% of BC, do not distinguish malignant lesions from benign ones, and require histologic examinations for which invasive biopsy must be performed. Annually in the United States, approximately 5.6 million biopsies find benign lesions. More than 50% of human BCs overexpress cyclin D1, and all BCs exhibit VPAC1 oncogene products. Together, these gene products may provide an excellent biomarker for the early and accurate detection of BC. We have evaluated 4 biologically active peptide analogs that have high affinity ...


Labrad : Vol 35, Issue 1 - January - February 2010, Aga Khan University Hospital, Karachi 2010 Aga Khan University

Labrad : Vol 35, Issue 1 - January - February 2010, Aga Khan University Hospital, Karachi

LABRAD

  • Assessment of Osteoporosis Risk by NTx- A Biochemical Marker
  • Antibodies Against Cyclic Citrullinated Peptides (Anti-CCP) Assay in Rheumatoid Arthritis
  • A Disintegrin and Metallopeptidase with Thrombospondin Type 1 Motif, 13 (ADAMTS-13)
  • Soluble Transferrin Receptor (sTfR)
  • Diagnosis of Cryptococcal Meningitis
  • Infections in Thalassaemia
  • CDX-2, A Reliable Diagnostic Marker for Carcinomas of Colorectal Origin
  • Radiopaque Metallic Marker Insertion in Breast Cancers Prior to Neoadjuvant/Preoperative Chemotherapy
  • Meeting Reports: 10TH International Radiological Conference 2009
  • Continuing Medical Education Seminar Organised by Clinical Laboratory at AKUH


Fingering A Murderer: A Successful Anthropological And Radiological Collaboration, B. G. Brogdon, Marcella H. Sorg, Kerriann Marden 2010 University of Maine

Fingering A Murderer: A Successful Anthropological And Radiological Collaboration, B. G. Brogdon, Marcella H. Sorg, Kerriann Marden

Anthropology Faculty Scholarship

We illustrate an interdisciplinary approach to identify a victim in a case with complex taphonomic and procedural issues. Burning, fragmentation, species commingling, and examination by multiple experts required anthropological preparation and analysis combined with radio- graphic adaptations to image and match trabecular patterns in unusually small, burned specimens. A missing person was last seen in the company of a reclusive female on a remote rural property. A warranted search found several burn sites containing human and animal bones. Fragment prepara- tion, analysis, and development of a biological profile by anthropologists enabled examination by the odontologist, molecular biologist, and radiolo- gist ...


Solar Simulated Radiation Induced Cell Death Depends On Spectral Distribution And Irradiance But Not Output Delivery, Alanna Maguire, Fiona Lyng, James Walsh 2010 Technological University Dublin

Solar Simulated Radiation Induced Cell Death Depends On Spectral Distribution And Irradiance But Not Output Delivery, Alanna Maguire, Fiona Lyng, James Walsh

Articles

Photo biological investigations are dependent on calibration and characterisation to determine the relevance of an artificial irradiator to the study at hand. The importance of this has been voiced in the literature. However, the importance of output delivery is relatively unknown. The biological relevance of a high energy, rapidly pulsing solar simulator was investigated using the clonogenic assay and was found to be reciprocity law compliant despite an exaggerated UV irradiance in excess of 1600 Wm-2 delivered per pulse. In fact, it was found to be the least cytotoxic irradiator compared to a second solar simulator and a UVB fluorescent ...


Mri Of Brain Disease In Veterinary Patients Part 2: Acquired Brain Disorders, Silke Hecht, William Adams 2009 University of Tennessee - Knoxville

Mri Of Brain Disease In Veterinary Patients Part 2: Acquired Brain Disorders, Silke Hecht, William Adams

Silke Hecht

Magnetic resonance imaging (MRI) has revolutionized brain imaging in veterinary medicine, making possible improved characterization of intracranial pathologic processes. This article focuses on MRI features of acquired brain disorders, including infectious inflammatory, noninfectious inflammatory, cerebrovascular, metabolic, nutritional, toxic, degenerative, traumatic, and neoplastic causes. Congenital intracranial disorders are covered in a companion article.


Hereditary 1,25-Dihydroxyvitamin D-Resistant Rickets In A Pomeranian Dog Caused By A Novel Mutation In The Vitamin D Receptor Gene., D LeVine, Erica Fields, A Birkenheur, J Gookin, I Robertson, P Malloy, D Feldman 2009 University of Tennessee, Knoxville

Hereditary 1,25-Dihydroxyvitamin D-Resistant Rickets In A Pomeranian Dog Caused By A Novel Mutation In The Vitamin D Receptor Gene., D Levine, Erica Fields, A Birkenheur, J Gookin, I Robertson, P Malloy, D Feldman

Erica L. Fields DVM, DACVR College of Veterinary Medicine

No abstract provided.


What Is Your Diagnosis? Congenital Portosystemic Shunt In A Dog, M Anderson, Silke Hecht, Amy Holford, David Hicks 2009 University of Tennessee - Knoxville

What Is Your Diagnosis? Congenital Portosystemic Shunt In A Dog, M Anderson, Silke Hecht, Amy Holford, David Hicks

Silke Hecht

No abstract provided.


What Is Your Diagnosis? Congenital Portosystemic Shunt In A Dog, M Anderson, Silke Hecht, Amy Holford, David Hicks 2009 University of Tennessee - Knoxville

What Is Your Diagnosis? Congenital Portosystemic Shunt In A Dog, M Anderson, Silke Hecht, Amy Holford, David Hicks

Amy L. Holford VMD, DACVIM

No abstract provided.


Digital Commons powered by bepress