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Abbreviated MRI

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https://www.readbyqxmd.com/read/30310952/christopher-e-comstock-christiane-kuhl-eds-abbreviated-mri-of-the-breast-a-practical-guide-thieme-medical-publishers-inc-2018-isbn-978-1-62623-193-1
#1
Luigi Mansi
No abstract text is available yet for this article.
October 11, 2018: European Journal of Nuclear Medicine and Molecular Imaging
https://www.readbyqxmd.com/read/30264511/rapid-mri-of-the-breast-in-evaluating-lesions-discovered-on-screening
#2
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
https://www.readbyqxmd.com/read/30255244/breast-density-implications-and-supplemental-screening
#3
REVIEW
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
https://www.readbyqxmd.com/read/30234601/structural-brain-changes-in-perinatally-hiv-infected-young-adolescents-in-south-africa
#4
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
https://www.readbyqxmd.com/read/30194749/abbreviated-mri-of-the-breast-does-it-provide-value
#5
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
https://www.readbyqxmd.com/read/30169233/long-term-prognosis-after-childhood-convulsive-status-epilepticus-a-prospective-cohort-study
#6
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
https://www.readbyqxmd.com/read/30140318/a-review-of-cervical-spine-mri-in-als-patients
#7
REVIEW
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
https://www.readbyqxmd.com/read/30118392/osteochondral-lesions-of-the-knee-differentiating-the-most-common-entities-at-mri
#8
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
https://www.readbyqxmd.com/read/30096550/molecular-oxygen-loading-in-candidate-theranostic-droplets-stabilized-with-biocompatible-fluorinated-surfactants-particle-size-effect-and-application-to-in-situ-19-f-mri-mapping-of-oxygen-partial-pressure
#9
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
https://www.readbyqxmd.com/read/30005769/impact-of-advancing-technology-on-diagnosis-and-treatment-of-breast-cancer
#10
REVIEW
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
https://www.readbyqxmd.com/read/29969068/abbreviations-in-radiology-mri
#11
EDITORIAL
David A Bluemke
No abstract text is available yet for this article.
August 2018: Radiology
https://www.readbyqxmd.com/read/29915937/diagnostic-accuracy-of-an-abbreviated-mri-protocol-for-detecting-radiographically-occult-hip-and-pelvis-fractures-in-the-elderly
#12
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
https://www.readbyqxmd.com/read/29799769/sonographic-assessment-of-optic-nerve-and-ophthalmic-vessels-in-patients-with-idiopathic-intracranial-hypertension
#13
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
https://www.readbyqxmd.com/read/29785182/reactive-oxygen-species-generation-in-human-cells-by-a-novel-magnetic-resonance-imaging-contrast-agent
#14
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
https://www.readbyqxmd.com/read/29734493/assessment-of-breast-mass-morphology-with-diffusion-weighted-mri-beyond-apparent-diffusion-coefficient
#15
Sibel Kul, Yavuz Metin, Musa Kul, Nurgul Metin, Ilker Eyuboglu, Oguzhan Ozdemir
BACKGROUND: Diffusion-weighted imaging (DWI) is a noncontrast-enhanced MRI technique. There are new promising studies on the use of DWI as a part of the enhanced or unenhanced abbreviated breast MRI protocols. PURPOSE: To evaluate the ability of breast DWI in the assessment of mass morphology and determine the contribution of this morphologic evaluation in their characterization. STUDY TYPE: Retrospective. POPULATION: In all, 213 consecutive women were breast MR imaged and had a later confirmed diagnosis...
May 7, 2018: Journal of Magnetic Resonance Imaging: JMRI
https://www.readbyqxmd.com/read/29696066/metastatic-neuroendocrine-pancreatic-tumor-case-report
#16
E C Radu, A I Saizu, R R Grigorescu, A E Croitoru, C Gheorghe
Rationale. Pancreatic neuroendocrine tumors (NETs) are rare neoplasms that develop from the endocrine tissues of the pancreas. They have a better overall prognosis than pancreatic adenocarcinoma. However, all commonly used classification systems reflect a separation between more indolent, well-differentiated tumors and far more aggressive poorly differentiated types that behave clinically more like small-cell carcinoma of the lung. Objective. To present the case of a 62-year-old man with an aggressive pancreatic NET, with liver, splenic and bone metastases who underwent multidisciplinary treatment including several lines of chemotherapy, somatostatin analogs and radiotherapy...
January 2018: Journal of Medicine and Life
https://www.readbyqxmd.com/read/29582348/comparison-of-detectability-of-breast-cancer-by-abbreviated-breast-mri-based-on-diffusion-weighted-images-and-postcontrast-mri
#17
COMPARATIVE STUDY
Takayuki Yamada, Yoshihide Kanemaki, Satoko Okamoto, Yasuo Nakajima
PURPOSE: To compare the detectability of unenhanced abbreviated magnetic resonance imaging (MRI) based on diffusion-weighted imaging (DWI) and abbreviated postcontrast MRI for breast cancer. METHODS: The study population consisted of 87 patients undergoing breast MRI between December 2016 and March 2017 in a clinical setting. All breast MRIs were performed using a 1.5-T MRI scanner with a 16-channel breast radiofrequency coil. The abbreviated protocols based on DWI (AP1) and postcontrast MRI (AP2) were assessed independently by two radiologists...
May 2018: Japanese Journal of Radiology
https://www.readbyqxmd.com/read/29551723/cystic-formation-after-stereotactic-radiosurgery-of-brain-metastasis
#18
Ali A Alattar, Kate Carroll, Brian R Hirshman, Rushikesh S Joshi, Parag Sanghvi, Clark C Chen
BACKGROUND: Limited information is available on the natural history and etiology of cystic formation after stereotactic radiosurgery (SRS) for brain metastases (BM). We aimed to characterize the natural history of cyst formation after SRS of BM and analyze potential risk factors. METHODS: We retrospectively reviewed 214 consecutive patients who underwent a total of 1106 SRSs for BM. Demographic, clinical, dosimetric, and magnetic resonance imaging MRI data were reviewed...
June 2018: World Neurosurgery
https://www.readbyqxmd.com/read/29498920/update-on-the-clinicopathology-of-pituitary-adenomas
#19
REVIEW
Chung Thong Lim, Márta Korbonits
OBJECTIVE: Pituitary adenomas are the third most common central nervous system tumors and arise from the anterior pituitary within the pituitary fossa. METHODS: Literature review and discussion. RESULTS: The signs and symptoms of patients with pituitary adenomas vary from 'mass effects' caused by a large adenoma to features secondary to excess pituitary hormones produced by the functioning pituitary adenoma. Detailed histopathologic assessment, based on novel classifications and the latest World Health Organization guidelines, helps to categorize pituitary adenomas into different subtypes and identify features that, in some cases, help to predict their behavior...
May 2018: Endocrine Practice
https://www.readbyqxmd.com/read/29450387/orbital-cellulitis-and-brain-abscess-rare-complications-of-maxillo-spheno-ethmoidal-rhinosinusitis
#20
Farah Constantin, Patricia-Alexandra Niculescu, Oana Petre, Daniel Balasa, Alexandru Tunas, Ioana Rusu, Mihai Lupascu, Cristiana Orodel
Sinus infections can be complicated by ocular infections and, in late phases, by brain parenchyma infection. The article debates the case of a 12-year-old patient suffering from paucisymptomatic maxillo-spheno-ethmoidal rhinosinusitis, which was later complicated by orbital cellulitis, ending with the development of a brain abscess. The treatment is complex, initially targeting the source of the infection through draining the collection by middle maxillary antrostomy and anterior posterior ethmoidectomy, then the ablation of the brain abscess and postoperatively with prolonged massive antibiotherapy...
April 2017: Romanian Journal of Ophthalmology
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