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Abbreviated MRI

A Muth, J Crona, O Gimm, A Elmgren, K Filipsson, M Stenmark Askmalm, J Sandstedt, M Tengvar, E Tham
Pheochromocytomas (PCC) and paragangliomas (PGL), collectively abbreviated PPGL are rare tumours originating from the chromaffin cells in the adrenal medulla (PCC) or the sympathetic or parasympathetic extra-adrenal paraganglia (PGL) (1, 2), Figure 1. The enlarged cell volume leads to increased levels of catecholamines (adrenaline, noraderenaline and/or dopamine) and their metabolites which can be measured in plasma or urine for biochemical diagnosis. Hormone-producing PPGL commonly originate from sympathetic paraganglia in the adrenal glands, abdomen or pelvis (3)...
December 8, 2018: Journal of Internal Medicine
Ali Keshavarzi, Vinod Kumar
The present work was designed to study the pH, sand, silt, clay, lime, organic carbon (OC), cation exchange capacity and heavy metals (Fe, Mn, Cu and Zn) in agricultural soils of Mashhad plain, Northeastern Iran. Pearson's correlation analysis showed that OC influenced the retention of Cu and Mn in both surface and subsurface agricultural soil samples. The results of contamination factor, pollution index and potential ecological risk (RI) indicated low pollution of Mn, Zn and Cu in the agricultural soil samples...
December 10, 2018: International Journal of Environmental Health Research
Zhen Kang, Xiangde Min, Jeffrey Weinreb, Qiubai Li, Zhaoyan Feng, Liang Wang
OBJECTIVE: The objective of our study was to evaluate the diagnostic accuracy of abbreviated biparametric MRI (bpMRI) versus standard multiparametric MRI (mpMRI) for prostate cancer (PCa) using guided biopsy or prostatectomy histopathology results as the reference standard. MATERIALS AND METHODS: A comprehensive literature search of PubMed, Web of Science, and Cochrane Library databases was performed by two researchers independently and the relevant references were assessed...
December 4, 2018: AJR. American Journal of Roentgenology
Heather I Greenwood
Breast MRI has been shown to be the most sensitive examination in the detection of breast cancer. However, given the high associated costs, its use in the screening setting has traditionally been limited to those who are at high-risk for breast cancer. Abbreviated protocol breast MRI is capable of reducing the traditional costs associated with breast MRI, while maintaining diagnostic accuracy and cancer detection, and therefore a potential future screening tool for breast cancer in a broader population of women than just those at high-risk...
October 22, 2018: Clinical Imaging
Rossano Girometti, Adriana Nitti, Michele Lorenzon, Franco Greco, Viviana Londero, Chiara Zuiani
BACKGROUND: Previous studies have shown that abbreviated magnetic resonance imaging (aMRI) compares well to full-protocol MRI (fpMRI) in breast cancer (BC) screening, with the potential advantage of a less costly and complex examination. To our knowledge, the role for aMRI in staging BC has been poorly investigated, especially in assessing additional disease (ie, additional lesions compared to the index one prompting the examination). PURPOSE: To compare aMRI and fpMRI in detecting additional disease in BC staging...
October 22, 2018: Journal of Magnetic Resonance Imaging: JMRI
Katerina Deike-Hofmann, Franziska Koenig, Daniel Paech, Constantin Dreher, Stefan Delorme, Heinz-Peter Schlemmer, Sebastian Bickelhaupt
Oncologic imaging focused on the detection of breast cancer is of increasing importance, with over 1.7 million new cases detected each year worldwide. MRI of the breast has been described to be one of the most sensitive imaging modalities in breast cancer detection; however, clinical use is limited due to high costs. In the past, the objective and clinical routine of oncologic imaging was to provide one extended imaging protocol covering all potential needs and clinical implications regardless of the specific clinical indication or question...
October 16, 2018: Journal of Magnetic Resonance Imaging: JMRI
Luigi Mansi
No abstract text is available yet for this article.
October 11, 2018: European Journal of Nuclear Medicine and Molecular Imaging
Nicholas Seppala, Rashin Fallah Rastegar, Lara Richmond, Carrie Betel, Kalesha Hack, Mia Skarpathiotakis, Roberta Jong, Rebecca Thornhill, Belinda Curpen
BACKGROUND: In Canada, breast MRI has traditionally been reserved for evaluation of disease extent in patients with known breast malignancy. More recently, MRI has been emerging as an instrument for breast screening. However, its utilization is limited by increased relative cost and increased reader time. In this study, we evaluate a rapid MRI protocol for breast cancer screening within a breast screening population. METHODS: A series of 100 MRI studies performed in a high-risk breast cancer population were selected, ensuring a mix of malignant and benign pathology and normal cases...
September 27, 2018: Breast Journal
Athina Vourtsis, Wendie A Berg
Digital breast tomosynthesis (DBT) has been widely implemented in place of 2D mammography, although it is less effective in women with extremely dense breasts. Breast ultrasound detects additional early-stage, invasive breast cancers when combined with mammography; however, its relevant limitations, including the shortage of trained operators, operator dependence and small field of view, have limited its widespread implementation. Automated breast sonography (ABS) is a promising technique but the time to interpret and false-positive rates need to be improved...
September 25, 2018: European Radiology
Jacqueline Hoare, Jean-Paul Fouche, Nicole Phillips, John A Joska, Landon Myer, Heather J Zar, Dan J Stein
OBJECTIVE: To describe the structural brain changes, neurocognitive and mental health associations in adolescents perinatally infected with HIV-1 infection. DESIGN: Cross-sectional. METHODS: 204 adolescents with perinatally acquired HIV and 44 uninfected frequency matched controls aged 9 to 11 years were enrolled within the Cape Town Adolescent Antiretroviral Cohort. Diffusion tensor imaging and structural brain magnetic resonance imaging (MRI) was done to determine fractional anisotropy (FA), mean diffusivity (MD), gray and white matter volumes, cortical thickness and cortical surface area...
September 17, 2018: AIDS
Doris Leithner, Linda Moy, Elizabeth A Morris, Maria A Marino, Thomas H Helbich, Katja Pinker
MRI of the breast is the most sensitive test for breast cancer detection and outperforms conventional imaging with mammography, digital breast tomosynthesis, or ultrasound. However, the long scan time and relatively high costs limit its widespread use. Hence, it is currently only routinely implemented in the screening of women at an increased risk of breast cancer. To overcome these limitations, abbreviated dynamic contrast-enhanced (DCE)-MRI protocols have been introduced that substantially shorten image acquisition and interpretation time while maintaining a high diagnostic accuracy...
September 8, 2018: Journal of Magnetic Resonance Imaging: JMRI
Suresh S Pujar, Marina M Martinos, Mario Cortina-Borja, W K Kling Chong, Michelle De Haan, Christopher Gillberg, Brian G Neville, Rod C Scott, Richard F Chin
BACKGROUND: The prognosis of convulsive status epilepticus (CSE), a common childhood medical neurological emergency, is not well characterised. We aimed to investigate the long-term outcomes in a cohort of participants who previously had CSE. METHODS: In this prospective study, we followed up a population-based childhood CSE cohort from north London, UK (the north London convulsive status epilepticus surveillance study cohort; NLSTEPSS). We collected data from structured clinical neurological assessment, neurocognitive assessment (Wechsler Abbreviated Scale of Intelligence), brain MRI, medical records, and structured interviews with participants and their parents to determine neurological outcomes, with adverse outcome defined as presence of one or more of epilepsy (active or in remission), motor disability, intellectual disability, or statement of special educational needs...
February 2018: The lancet child & adolescent health
F Antonescu, M Adam, C Popa, S Tuţă
Rationale. In recent years, significant advances have been made on the subject of MRI examination techniques, which have opened new avenues of research regarding the spinal involvement in amyotrophic lateral sclerosis (ALS). Objective. Our objective was to compile and analyze the available literature data, concerning the MRI of the cervical spine in ALS, detailing the metrics and their significance in diagnosis and follow-up. Methods and results. We have conducted an extensive search on the subject using literature data published over the last fifteen years, correlating it with our own experience...
April 2018: Journal of Medicine and Life
Tetyana Gorbachova, Yulia Melenevsky, Micah Cohen, Brett W Cerniglia
Several pathologic conditions may manifest as an osteochondral lesion of the knee that consists of a localized abnormality involving subchondral marrow, subchondral bone, and articular cartilage. Although understanding of these conditions has evolved substantially with the use of high-spatial-resolution MRI and histologic correlation, it is impeded by inconsistent terminology and ambiguous abbreviations. Common entities include acute traumatic osteochondral injuries, subchondral insufficiency fracture, so-called spontaneous osteonecrosis of the knee, avascular necrosis, osteochondritis dissecans, and localized osteochondral abnormalities in osteoarthritis...
September 2018: Radiographics: a Review Publication of the Radiological Society of North America, Inc
Orane Lorton, Jean-Noël Hyacinthe, Stéphane Desgranges, Laura Gui, Antoine Klauser, Zarko Celicanin, Lindsey A Crowe, François Lazeyras, Eric Allémann, Nicolas Taulier, Christiane Contino-Pépin, Rares Salomir
OBJECTIVE: Perfluorocarbon nano- and micron-sized emulsions are a new field of investigation in cancer treatment due to their ability to be used as imaging contrast agents, or as delivery vectors for pharmaceuticals. They also demonstrated capability to enhance the efficiency of high intensity focused ultrasound thermo-therapy. In the context of new biomedical applications we investigated perfluorooctyl bromide (PFOB) theranostic droplets using 19 F NMR. Each droplet contains biocompatible fluorinated surfactants composed of a polar Tris(hydroxymethyl)aminomethane head unit and hydrophobic perfluorinated tail (abbreviated as F-TAC)...
October 2018: Journal of Magnetic Resonance
Heather I Greenwood, Katerina Dodelzon, Janine T Katzen
New emerging breast imaging techniques have shown great promise in breast cancer screening, evaluation of extent of disease, and response to neoadjuvant therapy. Tomosynthesis, allows 3-dimensional imaging of the breast, and increases breast cancer detection. Fast abbreviated MRI has reduced time and costs associated with traditional breast MRI while maintaining cancer detection. Diffusion-weighted imaging is a functional MRI technique that does not require contrast and has shown potential in screening, lesion characterization and also evaluation of treatment response...
August 2018: Surgical Clinics of North America
David A Bluemke
No abstract text is available yet for this article.
August 2018: Radiology
Andrew B Ross, Brian Y Chan, Paul H Yi, Michael D Repplinger, David J Vanness, Kenneth S Lee
OBJECTIVE: To determine the diagnostic accuracy of an abbreviated, two-sequence MRI protocol using limited pulse sequences for the detection of radiographically occult hip and pelvis fractures in the elderly compared to the complete MRI examination. MATERIALS AND METHODS: One hundred and eleven consecutive emergency department patients age 65 or older who had undergone MRI to evaluate for clinically suspected hip fracture after negative radiographs were included in the study...
June 18, 2018: Skeletal Radiology
Asmaa M Ebraheim, Husam S Mourad, Nirmeen A Kishk, Nashwa Badr Eldin, Abdullah A Saad
BACKGROUND: Early diagnosis and proper monitoring of intracranial pressure (ICP) in idiopathic intracranial hypertension (IIH) could reduce morbidity. OBJECTIVES: The objective was to explore and monitor reflection of raised ICP in IIH on optic nerve sheath diameter (ONSD), papillary height and ophthalmic vessels hemodynamics, using transorbital sonography (TOS). METHODS: The study included 24 IIH patients and 30 controls. Patients were compared to controls (phase I) then reassessed twice; 1 week and 4 weeks later (phase II)...
September 2018: Neurological Research
Li Wang, Eric Lin, Mary J Johansen, Timothy Madden, Edward Felix, Karen S Martirosyan, Steven J Frank
The novel positive-contrast magnetic resonance imaging (MRI) marker C4 consists of an aqueous solution of cobalt chloride (CoCl2 ) complexed with the chelator N-acetylcysteine (NAC). We evaluated whether the presence of C4 or its components would produce reactive oxygen species (ROS, including hydroxyl, peroxyl, or other reactive oxygen species) in cultured cells. Human cancer or normal cells were incubated with 1% (w/v) CoCl2 ·6H2 O or 2% NAC or a combination of both (1% CoCl2 ·6H2 O : 2% NAC in an aqueous solution, abbreviated as Co : NAC) in the presence or absence of H2 O2 ...
2018: Journal of Toxicology
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