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Articles 1 - 13 of 13
Full-Text Articles in Radiology
Near-Infrared Characterization Of Breast Tumors In Vivo Using Spectrally-Constrained Reconstruction, Subhadra Srinivasan, Brian W. Pogue, Ben Brooksby, Shudong Jiang, Hamid Dehghani, Christine Kogel, Wendy A. Wells, Steven P. Poplack, Keith D. Paulsen
Near-Infrared Characterization Of Breast Tumors In Vivo Using Spectrally-Constrained Reconstruction, Subhadra Srinivasan, Brian W. Pogue, Ben Brooksby, Shudong Jiang, Hamid Dehghani, Christine Kogel, Wendy A. Wells, Steven P. Poplack, Keith D. Paulsen
Dartmouth Scholarship
Multi-wavelength Near-Infrared (NIR) Tomography was utilized in this study to non-invasively quantify physiological parameters of breast tumors using direct spectral reconstruction. Frequency domain NIR measurements were incorporated with a new spectrally constrained direct chromophore and scattering image reconstruction algorithm, which was validated in simulations and experimental phantoms. Images of total hemoglobin, oxygen saturation, water, and scatter parameters were obtained with higher accuracy than previously reported. Using this spectral approach, in vivo NIR images are presented and interpreted through a series of case studies (n=6 subjects) having differing abnormalities. The corresponding mammograms and ultrasound images are also evaluated. Three of six …
Role Of Computed Tomography In Acute Pancreatitis And Its Complications Among Age Groups, Ishtiaq Ahmed Chishty, Vaqar Bari, Sajida Pasha, Dawar Burhan, Zishan Haider, Zafar Rafique
Role Of Computed Tomography In Acute Pancreatitis And Its Complications Among Age Groups, Ishtiaq Ahmed Chishty, Vaqar Bari, Sajida Pasha, Dawar Burhan, Zishan Haider, Zafar Rafique
Department of Radiology
Objective: To determine value of CT scan in diagnosis of acute pancreatitis, its complications and to correlate with severity among different age groups.Methods: The study was carried out from August 2001 to August 2002 at the Radiology Department, Aga Khan University Hospital. A total of 40 patients (33 male and 7 female) with age range from 16-71 years were divided in three groups. Group I was less than 40 years (12 patients), Group II was between 40-60 years (17 patients), and Group III was more than 60 years (11 patients). CT scans were assessed for pancreatic necrosis and its complications. …
Cerebral Deep Venous Thrombosis: Case Report And Literature Review, Muhammad Zafar Rafique, Vaqar Bari, Kashif Ashraf, Muhammad Nadeem Ahmad
Cerebral Deep Venous Thrombosis: Case Report And Literature Review, Muhammad Zafar Rafique, Vaqar Bari, Kashif Ashraf, Muhammad Nadeem Ahmad
Department of Radiology
The case of a 28 years old woman presenting with headache, drowsiness and vomiting of a short duration, is presented. She was diagnosed as deep cerebral venous thrombosis on the basis of MRI findings. Treatment with heparin gave completed recovery.
A Case For Case Reports, Saba Sohail
Primary Splenic Hydatid Cyst: A Case Report With Characteristic Imaging Appearance, Yousuf A. Husen, Naila Nadeem, Fawad Aslam, Imran Bhaila
Primary Splenic Hydatid Cyst: A Case Report With Characteristic Imaging Appearance, Yousuf A. Husen, Naila Nadeem, Fawad Aslam, Imran Bhaila
Department of Radiology
A middle-aged lady presented with pain, tenderness and swelling in the left hypochondrium since one month. She had a history of contact with dogs and grazing animals. Sonography and computed tomography showed the pathognomonic signs of hydatid disease. The patient refused surgical treatment. She was discharged on Albendazole therapy and did not return for a follow up.
Hemorrhagic Corpus Luteum Mimicking Heterotopic Pregnancy, Saba Sohail
Hemorrhagic Corpus Luteum Mimicking Heterotopic Pregnancy, Saba Sohail
Department of Radiology
Hemorrhagic corpus luteum (CL) is clinically known to simulate a number of medical, surgical and gynecologic conditions that cause acute abdomen. One such case is hereby presented that mimicked ectopic pregnancy clinically and heterotopic pregnancy on ultrasound. Laparoscopy was decisive.
Quantitative 1h Magnetic Resonance Spectroscopic Imaging Determines Therapeutic Immunization Efficacy In An Animal Model Of Parkinson's Disease., Michael D. Boska, Travis B. Lewis, Christopher J. Destache, Eric J. Benner, Jay A. Nelson, Mariano Uberti, R. Lee Mosley, Howard Gendelman
Quantitative 1h Magnetic Resonance Spectroscopic Imaging Determines Therapeutic Immunization Efficacy In An Animal Model Of Parkinson's Disease., Michael D. Boska, Travis B. Lewis, Christopher J. Destache, Eric J. Benner, Jay A. Nelson, Mariano Uberti, R. Lee Mosley, Howard Gendelman
Journal Articles: Radiology
Nigrostriatal degeneration, the pathological hallmark of Parkinson's disease (PD), is mirrored by 1-methyl-4-phenyl-1,2,3,6-tetrahydropyridine (MPTP) intoxication. MPTP-treated animals show the common behavioral, motor, and pathological features of human disease. We demonstrated previously that adoptive transfer of Copaxone (Cop-1) immune cells protected the nigrostriatal dopaminergic pathway in MPTP-intoxicated mice. Herein, we evaluated this protection by quantitative proton magnetic resonance spectroscopic imaging (1H MRSI). 1H MRSI performed in MPTP-treated mice demonstrated that N-acetyl aspartate (NAA) was significantly diminished in the substantia nigra pars compacta (SNpc) and striatum, regions most affected in human disease. When the same regions were coregistered with immunohistochemical stains for …
Re-Emphasizing The Publication Ethics, Saba Sohail, Jamshed Akhtar
Re-Emphasizing The Publication Ethics, Saba Sohail, Jamshed Akhtar
Department of Radiology
No abstract provided.
Clinics In Diagnostic Imaging (102), M Azeemuddin, T Ul-Haq, H Ahsan, W A. Memon
Clinics In Diagnostic Imaging (102), M Azeemuddin, T Ul-Haq, H Ahsan, W A. Memon
Department of Radiology
A 19-year-old man presented with cough and haemoptysis of ten days duration. He also had mild right hypochondrial pain. Chest radiograph and computed tomography (CT) showed a rounded soft tissue density opacity with an air crescent sign. CT showed multiple cystic lesions in the liver with a daughter cyst in its lateral wall. Diagnosis of hydatid disease of lung and liver was made. The contents of the liver cyst were aspirated, hypertonic saline instilled, re-aspirated, and absolute alcohol injected. Hydatid disease is endemic in certain parts of the world. Although the lungs and liver are most frequently affected, the disease …
Multiple Parameters In The Diagnosis Of Ectopic Pregnancy, Iram Naseem, Vaqar Bari, Naila Nadeem
Multiple Parameters In The Diagnosis Of Ectopic Pregnancy, Iram Naseem, Vaqar Bari, Naila Nadeem
Department of Radiology
Objective: To determine the role of emergency ultrasound examination in the diagnosis and management of ectopic pregnancy.Methods: A descriptive study done at the Radiology Department, Aga Khan University Hospital, Karachi from January 1999 to December 2000 using observational facts by non-probability convenient sampling method. Seventy one patients who presented with acute symptoms in early pregnancy, were subjected to emergency pelvic ultrasound. Both transabdominal and transvaginal ultrasound were done in 52 patients while in 19 patients only transabdominal ultrasound was performed. Serum Beta hCG levels, of all patients were greater than 1500 iu/ml.Results: Ultrasound correctly identified ectopic pregnancy in 71 patients. …
Medium From Irradiated Cells Induces A Dose Dependent Expression Of Mitochondrial Changes And Bcl2 Responses In Unirradiated Human Keratinocytes, Paula Maguire, Carmel Mothersill, C. Seymour, Fiona Lyng
Medium From Irradiated Cells Induces A Dose Dependent Expression Of Mitochondrial Changes And Bcl2 Responses In Unirradiated Human Keratinocytes, Paula Maguire, Carmel Mothersill, C. Seymour, Fiona Lyng
Articles
Exposure of unirradiated human keratinocytes to irradiated cell conditioned medium (ICCM) is known to cause a cascade of events that leads to reproductive death and apoptosis. This study investigates the effect of ICCM on clonogenic survival, mitochondrial mass and BCL2 expression in unirradiated keratinocytes. Exposure to 5 mGy, 0.5 Gy and 5 Gy ICCM resulted in a significant decrease in clonogenic survival. Human keratinocytes incubated with ICCM containing an antioxidant, N-acetylcysteine, showed no significant decrease in clonogenic survival. HPV-G cells incubated with ICCM containing a caspase 9 inhibitor showed no significant decrease in clonogenic survival when the ICCM dose was …
Department Of Radiology-Annual Executive Summary Report-July 1, 2004 To June 30, 2005, Vijay M. Rao M.D.
Department Of Radiology-Annual Executive Summary Report-July 1, 2004 To June 30, 2005, Vijay M. Rao M.D.
Department of Radiology Administrative Documents and Reports
88 page Department of Radiology Annual Executive Summary Report, July 1, 2004 to June 30, 2005, Thomas Jefferson University Hospital, Philadelphia, Pennsylvania, United States.
Manuscripts Categorization And Their Accreditation, Jamshed Akhtar, Saba Sohail
Manuscripts Categorization And Their Accreditation, Jamshed Akhtar, Saba Sohail
Department of Radiology
No abstract provided.