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Gestational Age Estimation Based On Fetal Pelvimetry On Fetal Ultrasound In Iraqi Women, Sattar Razzaq Al-Esawi, Niran Mohammed Al-Hashimi, Farah S. Ali, Sarwat Hussain 2016 Al Sader Medical City

Gestational Age Estimation Based On Fetal Pelvimetry On Fetal Ultrasound In Iraqi Women, Sattar Razzaq Al-Esawi, Niran Mohammed Al-Hashimi, Farah S. Ali, Sarwat Hussain

The Journal of Global Radiology

Ultrasound is an integral part of obstetric practice, and assessment of gestational age (GA) is a central element of obstetric ultrasonography. Sonographic estimation of GA is derived from calculations based on fetal measurements. Numerous equations for GA calculation from fetal biometry have been adopted in routine practice. This study reports a new method of estimating GA in the second and third trimester using interischial distance (IID), the distance between the two ischial primary ossification centers, on fetal ultrasound. Four hundred women with uncomplicated normal singleton pregnancies from 16 weeks to term were examined. Standard fetal obstetric ultrasound was done measuring ...


Radiography Students: Factors Contributing To Their Stress And Methods Of Coping, Kayla A. Rosenbaum 2016 East Tennessee State University

Radiography Students: Factors Contributing To Their Stress And Methods Of Coping, Kayla A. Rosenbaum

Electronic Theses and Dissertations

College students experience high levels of stress, especially those in health care programs. The purpose of this study was to determine what factors contribute to Tennessee radiography student stress levels and the methods by which they cope with stress. Additionally, do demographic factors affect radiography student stress levels? The research was conducted February 4 to March 30, 2016. A survey was distributed to students in a radiography program at two and four year colleges in Tennessee. Participants were asked questions on factors that influence their stress levels, coping strategies, and health issues experienced in the past year. Descriptive statistics, independent ...


Identifying Treatment Planning System Errors In Iroc-Houston Head And Neck Phantom Irradiations, James Kerns 2016 The University of Texas Graduate School of Biomedical Sciences at Houston

Identifying Treatment Planning System Errors In Iroc-Houston Head And Neck Phantom Irradiations, James Kerns

UT GSBS Dissertations and Theses (Open Access)

Treatment Planning System (TPS) errors can affect large numbers of cancer patients receiving radiation therapy. Using an independent recalculation system, the Imaging and Radiation Oncology Core-Houston (IROC-H) can identify institutions that have not sufficiently modelled their linear accelerators in their TPS model. Linear accelerator point measurement data from IROC-H’s site visits was aggregated and analyzed from over 30 linear accelerator models. Dosimetrically similar models were combined to create “classes”. The class data was used to construct customized beam models in an independent treatment dose verification system (TVS). Approximately 200 head and neck phantom plans from 2012 to 2015 were ...


A Comparison Of Imaging Modalities For The Diagnosis Of Osteomyelitis, Brandon J. Smith, MD, Grant S. Buchanan, MD, Franklin D. Shuler, MD, PhD 2016 Marshall University, Joan C. Edwards School of Medicine

A Comparison Of Imaging Modalities For The Diagnosis Of Osteomyelitis, Brandon J. Smith, Md, Grant S. Buchanan, Md, Franklin D. Shuler, Md, Phd

Marshall Journal of Medicine

Osteomyelitis is an increasingly common pathology that often poses a diagnostic challenge to clinicians. Accurate and timely diagnosis is critical to preventing complications that can result in the loss of life or limb. In addition to history, physical exam, and laboratory studies, diagnostic imaging plays an essential role in the diagnostic process. This narrative review article discusses various imaging modalities employed to diagnose osteomyelitis: plain films, computed tomography (CT), magnetic resonance imaging (MRI), ultrasound, bone scintigraphy, and positron emission tomography (PET). Articles were obtained from Pubmed and screened for relevance to the topic of diagnostic imaging for osteomyelitis. The authors ...


Traumatic Posterior Tibial Pseudoaneursym: A Rare Late Complication Repaired Conventionally, Farzad Amiri, MD, Zachary Sanford, Constantinous Constantinou, MD 2016 Marshall University: School of Medicine

Traumatic Posterior Tibial Pseudoaneursym: A Rare Late Complication Repaired Conventionally, Farzad Amiri, Md, Zachary Sanford, Constantinous Constantinou, Md

Marshall Journal of Medicine

Posterior tibial artery pseudoaneurysms are extremely rare. They commonly present as a late complication of trauma or iatrogenic injury. Diagnosis can be elusive. Treatment has been described in the context of open primary repair, endovascular stenting, and coil embolization. There has been increasing interest in the use of endovascular treatment options for this type of injury. If left untreated, pseudoaneurysms can rupture, partially thrombose, expand and cause adjacent local compression and compartment syndrome. The following case presented is of a young gentleman with a posterior tibial pseudoaneurysm incidentally discovered after stepping on glass and the management of his posterior tibial ...


Synthetic Magnetic Resonance Imaging Revisited, Ranjan Maitra, John J. Riddles 2016 Iowa State University

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

Ranjan Maitra

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 ...


Assessment Of Post-Treatment Imaging Changes Following Radiotherapy Using Magnetic Susceptibility Techniques, Jean-Guy Belliveau 2016 The University of Western Ontario

Assessment Of Post-Treatment Imaging Changes Following Radiotherapy Using Magnetic Susceptibility Techniques, Jean-Guy Belliveau

Electronic Thesis and Dissertation Repository

Radiation therapy (RT) is a common treatment for brain neoplasms and is used alone or in combination with other therapies. The use of RT has been found to be successful in controlling tumors and extending the overall survival of patients; however, there are many unanswered questions regarding radiotherapy effects in the normal brain surrounding or infiltrated by tumor. Changes to the vascular and parenchyma have been documented, and more recently inflammatory mechanisms have been postulated to play a role in radiation injury. Traditional imaging techniques used within the clinic (CT and MRI) are often lacking in their ability to differentiate ...


Ultrasound-Guided Intralesional Bleomycin Injection (Ibi) For Treatment Of Cutaneous Hemangiomas And Vascular Malformations, Yousuf Memon, Nuzhat I. Malik, Naveed Anjum, S. Kamran Ahmed, Sadaf Saeed 2016 The Indus Hospital

Ultrasound-Guided Intralesional Bleomycin Injection (Ibi) For Treatment Of Cutaneous Hemangiomas And Vascular Malformations, Yousuf Memon, Nuzhat I. Malik, Naveed Anjum, S. Kamran Ahmed, Sadaf Saeed

The Journal of Global Radiology

Purpose: To report the therapeutic outcome of ultrasound-guided intralesional injection of bleomycin in the treatment of cutaneous hemangiomas and vascular malformations.

Material & Methods: The medical records of patients with cutaneous hemangiomas and vascular malformations treated with the intralesional injection of bleomycin under ultrasound guidance between August 2009 and June 2013 at the Indus Hospital, Karachi were reviewed retrospectively using a computerized medical record information management system. Data were extracted using a pre-coded performa that included patient demographics, type and location of lesion, number of treatments, presenting/pre- and post-treatment clinical symptoms (pain, swelling, heaviness, size, discoloration), ultrasound appearance and vascularity, and post-treatment side effects. The dose range of bleomycin was 0.5-1.0 mg/kg, but not exceeding 15 mg in a single session. A maximum of four treatments were given in any given patient except for one, who presented with recurrence after a year of complete resolution. Therapeutic outcome was determined using review of ultrasound images and recorded clinical assessment. Treatment response was categorized as: (i) complete resolution [more than 90% reduction]; (ii) substantial reduction [more than 50% reduction]; (iii) mild reduction [25% reduction]; or, (iv) no improvement [ < 10% reduction].

Results: A total of 30 patients (16 female, 14 male), ranging in age from 8 months to 48 years (mean age 10.2 years), were treated from 2009 to 2013. There were 23 hemangiomas. Seven were vascular malformations, of which five were lymphatic malformations and two were venous malformations. Twenty-eight lesions were located in the head and neck region, and two were ...


Predictive Biomarkers Of Cellular Radiosensitivity For Clinical Radiotherapy Treatment, Lisa White 2016 Dublin Institute of Technology

Predictive Biomarkers Of Cellular Radiosensitivity For Clinical Radiotherapy Treatment, Lisa White

Doctoral

Radiotherapy is prescribed to more than 50% of cancer patients during their treatment schedule. Due to intrinsic factors, individual variation in response exists, which will result in side effects or toxicity in a number of patients. Therefore, development of an assay or biomarker for the prediction and assessment of radiosensitivity among cancer patients undergoing radiotherapy would be beneficial. Such an assay would limit toxicities and facilitate dose-escalation for those patients who require it. Assays for predicting intrinsic cellular radiosensitivity remains as the established G2 chromosomal radiosensitivity and most promising, γH2AX foci assay. They can be applied to blood samples from ...


Ultrasonography Of The Scrotum In Adults, Anna L. Kuhn, Eduardo Scortegagna, Kristina M. Nowitzki, Young H. Kim 2016 University of Massachusetts Medical School

Ultrasonography Of The Scrotum In Adults, Anna L. Kuhn, Eduardo Scortegagna, Kristina M. Nowitzki, Young H. Kim

Radiology Publications and Presentations

Ultrasonography is the ideal noninvasive imaging modality for evaluation of scrotal abnormalities. It is capable of differentiating the most important etiologies of acute scrotal pain and swelling, including epididymitis and testicular torsion, and is the imaging modality of choice in acute scrotal trauma. In patients presenting with palpable abnormality or scrotal swelling, ultrasonography can detect, locate, and characterize both intratesticular and extratesticular masses and other abnormalities. A 12-17 MHz high frequency linear array transducer provides excellent anatomic detail of the testicles and surrounding structures. In addition, vascular perfusion can be easily assessed using color and spectral Doppler analysis. In most ...


Non-Invasive Imaging For The Assessment Of Cardiac Dose And Function Following Focused External Beam Irradiation, Omar El-Sherif 2016 The University of Western Ontario

Non-Invasive Imaging For The Assessment Of Cardiac Dose And Function Following Focused External Beam Irradiation, Omar El-Sherif

Electronic Thesis and Dissertation Repository

Technological advances in imaging and radiotherapy have led to significant improvement in the survival rate of breast cancer patients. However, a larger proportion of patients are now exhibiting the less understood, latent effects of incidental cardiac irradiation that occurs during left-sided breast radiotherapy. Here, we examine the utility of four-dimensional computed tomography (4D-CT) for the accurate assessment of cardiac dose; and a hybrid positron emission tomography (PET) magnetic resonance imaging (MRI) system to longitudinally study radiation-induced cardiac effects in a canine model.

Using 4D-CT and deformable dose accumulation, we assessed the variation caused by breathing motion in the estimated dose ...


Redefining Budd-Chiari Syndrome: A Systematic Review, Naomi Shin, Young H. Kim, Hao Xu, Hai-Bin Shi, Qing-Qiao Zhang, Jean Paul Colon Pons, Ducksoo Kim, Yi Xu, Fei-Yun Wu, Samuel Han, Byung-Boong Lee, Lin-Sun Li 2016 University of Massachusetts Medical School

Redefining Budd-Chiari Syndrome: A Systematic Review, Naomi Shin, Young H. Kim, Hao Xu, Hai-Bin Shi, Qing-Qiao Zhang, Jean Paul Colon Pons, Ducksoo Kim, Yi Xu, Fei-Yun Wu, Samuel Han, Byung-Boong Lee, Lin-Sun Li

Radiology Publications and Presentations

AIM: To re-examine whether hepatic vein thrombosis (HVT) (classical Budd-Chiari syndrome) and hepatic vena cava-Budd Chiari syndrome (HVC-BCS) are the same disorder.

METHODS: A systematic review of observational studies conducted in adult subjects with primary BCS, hepatic vein outflow tract obstruction, membranous obstruction of the inferior vena cava (IVC), obliterative hepatocavopathy, or HVT during the period of January 2000 until February 2015 was conducted using the following databases: Cochrane Library, CINAHL, MEDLINE, PubMed and Scopus.

RESULTS: Of 1299 articles identified, 26 were included in this study. Classical BCS is more common in women with a pure hepatic vein obstruction (49 ...


Advanced Mri Center: A 3 Tesla Magnetic Resonance System For Preclinical, Translational And Clinical Imaging Studies, Letterio S. Politi, Shaokuan Zheng, Matthew J. Gounis 2016 University of Massachusetts Medical School

Advanced Mri Center: A 3 Tesla Magnetic Resonance System For Preclinical, Translational And Clinical Imaging Studies, Letterio S. Politi, Shaokuan Zheng, Matthew J. Gounis

UMass Center for Clinical and Translational Science Research Retreat

The Advanced MRI Center, located in the UMass Medical School building, is a research core facility providing the latest magnetic resonance imaging and spectroscopy capabilities to UMass scientists. It is equipped with a Philips Achieva 3.0T X-series whole-body scanner and radiofrequency coils for studying all organs of the human body, and small and large animals, such as mice, rats, rabbits, dogs, sheep and non-human primates. The center also includes a radiofrequency coil lab, a nurses’ station, two patient holding rooms and two patient changing rooms.

The Center’s specialized techniques are able to elucidate functional, physiological and biochemical information ...


Library Online Resources Of Special Interest Radiologic Sciences, Information Services 2016 Scott Memorial Library, Thomas Jefferson University

Library Online Resources Of Special Interest Radiologic Sciences, Information Services

Electronic Handouts

E-books and databases for Radiologic Sciences.


Pilot Study Of A Resource-Appropriate Strategy For Downstaging Breast Cancer In Rural Uganda, Alphonsus Matovu, John R. Scheel, Picho Alli Shadrack, Renny Ssembatya, Angela Njeri, Moses Galukande, Kristen K. DeStigter 2016 Mubende Regional Referral Hospital

Pilot Study Of A Resource-Appropriate Strategy For Downstaging Breast Cancer In Rural Uganda, Alphonsus Matovu, John R. Scheel, Picho Alli Shadrack, Renny Ssembatya, Angela Njeri, Moses Galukande, Kristen K. Destigter

The Journal of Global Radiology

Breast cancer incidence and mortality are rapidly increasing in low- and middle-income countries like Uganda. Shifting the proportion of women presenting with late-stage breast cancer to early-stage breast cancer (downstaging) at the time of diagnosis would substantially improve survival and efficient use of available resources. Imaging The World (ITW) conducted a pilot study in Uganda where trained village health teams (VHTs) promoted breast cancer awareness in the Kamuli District (Uganda). As a result, 212 women with self-detected lumps presented to the community health center level III (Nawanyago HCIII) for a clinical breast examination (CBE). Patients with masses on CBE were ...


Establishing The Feasibility Of The Dosimetric Compliance Criteria Of Rtog 1308: Phase Iii Randomized Trial Comparing Overall Survival After Photon Versus Proton Radiochemotherapy For Inoperable Stage Ii-Iiib Nsclc., Tawfik Giaddui, Wenzhou Chen, Jialu Yu, Liyong Lin, Charles B. Simone, Lulin Yuan, Yutao U.T. Gong, Q. Jackie Wu, Radhe Mohan, Xiaodong Zhang, Jaques B. Bluett, Michael Gillin, Kevin Moore, Elizabeth O'Meara, Jennifer Presley, Jeffrey D Bradley, Zhongxing Liao, James Galvin, Ying Xiao 2016 Thomas Jefferson University

Establishing The Feasibility Of The Dosimetric Compliance Criteria Of Rtog 1308: Phase Iii Randomized Trial Comparing Overall Survival After Photon Versus Proton Radiochemotherapy For Inoperable Stage Ii-Iiib Nsclc., Tawfik Giaddui, Wenzhou Chen, Jialu Yu, Liyong Lin, Charles B. Simone, Lulin Yuan, Yutao U.T. Gong, Q. Jackie Wu, Radhe Mohan, Xiaodong Zhang, Jaques B. Bluett, Michael Gillin, Kevin Moore, Elizabeth O'Meara, Jennifer Presley, Jeffrey D Bradley, Zhongxing Liao, James Galvin, Ying Xiao

Department of Radiation Oncology Faculty Papers

BACKGROUND: To establish the feasibility of the dosimetric compliance criteria of the RTOG 1308 trial through testing against Intensity Modulation Radiation Therapy (IMRT) and Passive Scattering Proton Therapy (PSPT) plans.

METHODS: Twenty-six lung IMRT and 26 proton PSPT plans were included in the study. Dose Volume Histograms (DVHs) for targets and normal structures were analyzed. The quality of IMRT plans was assessed using a knowledge-based engineering tool.

RESULTS: Most of the RTOG 1308 dosimetric criteria were achieved. The deviation unacceptable rates were less than 10 % for most criteria; however, a deviation unacceptable rate of more than 20 % was computed for ...


Mr Imaging Findings In Xp21.2 Duplication Syndrome, Matthew T. Whitehead, Guy Helman, Andrea L. Gropman 2016 George Washington University

Mr Imaging Findings In Xp21.2 Duplication Syndrome, Matthew T. Whitehead, Guy Helman, Andrea L. Gropman

Radiology Faculty Publications

Xp21.2 duplication syndrome is a rare genetic disorder of undetermined prevalence and clinical relevance. As the use of chromosomal microarray has become first line for the work-up of childhood developmental delay, more gene deletions and duplications have been recognized. To the best of our knowledge, the imaging findings of Xp21.2 duplication syndrome have not been reported. We report a case of a 33 month-old male referred for developmental delay that was found to have an Xp21.2 duplication containing IL1RAPL1 and multiple midline brain malformations.


Neuroimaging Of Cerebral Venous Thrombosis, Mohammad Wasay, Muhammad Azeemuddin 2016 Aga Khan University

Neuroimaging Of Cerebral Venous Thrombosis, Mohammad Wasay, Muhammad Azeemuddin

Mohammad Wasay

Early and accurate diagnosis of cerebral venous thrombosis (CVT) is possible with the help of computed tomography (CT) scan and magnetic resonance imaging (MRI). Empty Δ sign on postcontrast CT is present in only up to 30% of the cases. The role of CT venography is not yet established, but it is emerging as an effective modality for diagnosis of CVT. T2* MRI sequence is superior to spin echo in detecting CVT and small hemor rhages. MR venography is considered the technique of choice for diagnosis and follow-up of CVT, but in certain cases, MRI could be superior as it ...


Modern Evaluation Of Abdominal Trauma, Errington C. Thompson, MD, Chadwick J. Knight, MD 2016 Marshall University

Modern Evaluation Of Abdominal Trauma, Errington C. Thompson, Md, Chadwick J. Knight, Md

Marshall Journal of Medicine

Abdominal trauma can be mysterious to some physicians. If patients are evaluated for being stable or unstable, then abdominal trauma can be easily managed. Using a combination of physical examination, ultrasound and CT scans, patients can be quickly and efficiently evaluated.


Development Of A Temperature Sensitive Face Mask For Identification And Triage Of Febrile Patients, Annemarie Daecher, Flemming Forsberg, John R. Eisenbrey 2016 Department of Radiology, Thomas Jefferson University, Philadelphia, PA 19107, USA

Development Of A Temperature Sensitive Face Mask For Identification And Triage Of Febrile Patients, Annemarie Daecher, Flemming Forsberg, John R. Eisenbrey

Department of Radiology Posters

Abstract:

Many infectious diseases are most transmittable when the carrier is presenting with fever. We propose a disposable face mask that changes color as an indicator of fever to provide hospitals with a quick and inexpensive method for triaging infected patients while limiting exposure to others. Two blue thermochromatic dyes which transition to white at 89°F and 92°F were mixed with white paint and applied to 5 types of disposable face masks. During trials, a wearer either sat at rest or ran on a treadmill for 20 minutes and images were obtained every 5 minutes with a thermal ...


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