keyword
MENU ▼
Read by QxMD icon Read
search

Lactate MRI

keyword
https://www.readbyqxmd.com/read/28228791/two-cases-of-pregnancy-and-lactation-associated-osteoporosis-successfully-treated-with-denosumab
#1
Ariel Sánchez, María Belén Zanchetta, Karina Danilowicz
Case 1. A 35-year-old woman in the 8(th) month of her first pregnancy suffered acute lumbar pain that persisted for 4 months. In the 5(th) month postpartum an acute increase in the low back pain led to a MRI which showed recent deformity in L1 and deformities of undetermined time of evolution in L2, L4, and L5. Laboratory evaluation did not reveal metabolic derangements. She had low bone mineral density (BMD, DXA) and severe deterioration of the microarchitecture of distal appendicular bone (HR-pQCT). Kyphoplasty of all 4 vertebrae was performed in 2 stages, and treatment with subcutaneous denosumab, 60 mg every 6 months, was begun...
September 2016: Clinical Cases in Mineral and Bone Metabolism
https://www.readbyqxmd.com/read/28225569/hepatic-alanine-differentiates-nonalcoholic-steatohepatitis-from-simple-steatosis-in-humans-and-mice-a-proton-mr-spectroscopy-study-with-long-echo-time
#2
Tae-Hoon Kim, Hong Young Jun, Ki-Jong Kim, Young Hwan Lee, Myeung Su Lee, Keum Ha Choi, Ki Jung Yun, Yong Yeon Jeong, Chung Hwan Jun, Eun Young Cho, Kwon-Ha Yoon
PURPOSE: To evaluate the hepatic metabolic alterations in nonalcoholic fatty liver disease (NAFLD) by using (1) H-MRS (proton magnetic resonance spectroscopy) with long echo time and to test the reproducibility of human study in an animal model. Liver biopsy is the gold standard for diagnosing NAFLD but with practical constraints. (1) H-MRS allows in vivo assessment of hepatocellular metabolism and has shown potential for biochemical differentiation in diffuse liver disease. MATERIALS AND METHODS: In all, 32 subjects (11 patients with nonalcoholic steatohepatitis [NASH], 15 with simple steatosis [SS], and six healthy controls) were studied...
February 22, 2017: Journal of Magnetic Resonance Imaging: JMRI
https://www.readbyqxmd.com/read/28154122/measurement-of-lactate-content-and-amide-proton-transfer-values-in-the-basal-ganglia-of-a-neonatal-piglet-hypoxic-ischemic-brain-injury-model-using-mri
#3
Y Zheng, X-M Wang
BACKGROUND AND PURPOSE: As amide proton transfer imaging is sensitive to protein content and intracellular pH, it has been widely used in the nervous system, including brain tumors and stroke. This work aimed to measure the lactate content and amide proton transfer values in the basal ganglia of a neonatal piglet hypoxic-ischemic brain injury model by using MR spectroscopy and amide proton transfer imaging. MATERIALS AND METHODS: From 58 healthy neonatal piglets (3-5 days after birth; weight, 1-1...
February 2, 2017: AJNR. American Journal of Neuroradiology
https://www.readbyqxmd.com/read/28061855/clinical-outcomes-and-prognostic-factors-for-gastric-cancer-patients-with-bone-metastasis
#4
Jota Mikami, Yutaka Kimura, Yoichi Makari, Junya Fujita, Tomoya Kishimoto, Genta Sawada, Shin Nakahira, Ken Nakata, Masaki Tsujie, Hiroki Ohzato
BACKGROUND: Bone metastasis due to gastric cancer is rare, and the clinical features have not been fully evaluated. We investigated the clinical features, treatment outcomes, and prognostic factors in gastric cancer patients with bone metastasis. METHODS: We retrospectively collected data on 34 consecutive patients who were diagnosed radiologically with bone metastasis due to gastric cancer. We estimated the overall survival after the diagnosis of bone metastasis using the Kaplan-Meier product-limit method and evaluated which clinicopathological factors were associated with prognostic factors for survival using univariate and multivariate Cox proportional hazards regression models...
January 6, 2017: World Journal of Surgical Oncology
https://www.readbyqxmd.com/read/28060330/hyperpolarized-13c-metabolic-magnetic-resonance-spectroscopy-and-imaging
#5
Eugen Kubala, Kim A Muñoz-Álvarez, Geoffrey Topping, Christian Hundshammer, Benedikt Feuerecker, Pedro A Gómez, Giorgio Pariani, Franz Schilling, Steffen J Glaser, Rolf F Schulte, Marion I Menzel, Markus Schwaiger
In the past decades, new methods for tumor staging, restaging, treatment response monitoring, and recurrence detection of a variety of cancers have emerged in conjunction with the state-of-the-art positron emission tomography with (18)F-fluorodeoxyglucose ([(18)F]-FDG PET). (13)C magnetic resonance spectroscopic imaging ((13)CMRSI) is a minimally invasive imaging method that enables the monitoring of metabolism in vivo and in real time. As with any other method based on (13)C nuclear magnetic resonance (NMR), it faces the challenge of low thermal polarization and a subsequent low signal-to-noise ratio due to the relatively low gyromagnetic ratio of (13)C and its low natural abundance in biological samples...
December 30, 2016: Journal of Visualized Experiments: JoVE
https://www.readbyqxmd.com/read/28044958/bilateral-axillary-accessory-breast-tissue-revealed-by-pregnancy
#6
Florin Grama, Ștefan Voiculescu, Ema Vîrga, Traean Burcoş, Daniel Cristian
We illustrate a rare case of a 28 year-old woman with bilateral axillary masses, which were uncovered during her first pregnancy only and grew progresively in size ever since. On local examination, there were two 5/3/5 cm masses with benign clinical characteristics, developed apparently on the axillary extension of the mammary gland. During lactation, a milk-like liquid was evacuated through a brownish, rudimentary, nipple located in the center of each axillary masses. One year after parturition, the MRI showed bilateral axillary breast tissue appearance, separated from the eutopic mammary gland, but having similar signal intensity...
November 2016: Chirurgia
https://www.readbyqxmd.com/read/28030441/does-permissive-hypoxaemia-during-extracorporeal-membrane-oxygenation-cause-long-term-neurological-impairment-a-study-in-patients-with-h1n1-induced-severe-respiratory-failure
#7
Bernhard Holzgraefe, Christin Andersson, Håkan Kalzén, Viktor von Bahr, Mikael Mosskin, Elna-Marie Larsson, Kenneth Palmér, Björn Frenckner, Anders Larsson
BACKGROUND: The Extracorporeal Life Support Organisation accepts permissive hypoxaemia in adult patients during extracorporeal membrane oxygenation (ECMO). The neurological long-term outcome of this approach has not yet been studied. OBJECTIVES: We investigated the prevalence of brain lesions and cognitive dysfunction in survivors from the Influenza A/H1N1 2009 pandemic treated with permissive hypoxaemia during ECMO for severe acute respiratory distress syndrome (ARDS)...
February 2017: European Journal of Anaesthesiology
https://www.readbyqxmd.com/read/28002522/primary-retroperitoneal-seminoma-embryology-histopathology-and-treatment-particularities
#8
Constantin Virgil Gîngu, Mihaela Mihai, Cătălin Baston, Mugurel Alexandru Crăsneanu, Alexandru Vladimir Dick, Vlad Olaru, Ioanel Sinescu
INTRODUCTION: Retroperitoneal seminoma is a very rare form of cancer, with embryological origin represented by primordial germ cells from the urogenital ridges left behind during the fetal development. Extragenital germ cell tumors can also occur in the mediastinum or the pineal gland. The aim of this paper is to outline the particularities and draw embryological, histopatological and treatment conclusions regarding extragonadal germ cell tumors. PATIENT AND METHODS: A 43-year-old patient without any additional pathology was admitted for anemia of unknown etiology...
2016: Romanian Journal of Morphology and Embryology, Revue Roumaine de Morphologie et Embryologie
https://www.readbyqxmd.com/read/27996064/free-serum-haemoglobin-is-associated-with-brain-atrophy-in-secondary-progressive-multiple-sclerosis
#9
Alex Lewin, Shea Hamilton, Aviva Witkover, Paul Langford, Richard Nicholas, Jeremy Chataway, Charles R M Bangham
Background A major cause of disability in secondary progressive multiple sclerosis (SPMS) is progressive brain atrophy, whose pathogenesis is not fully understood. The objective of this study was to identify protein biomarkers of brain atrophy in SPMS. Methods We used surface-enhanced laser desorption-ionization time-of-flight mass spectrometry to carry out an unbiased search for serum proteins whose concentration correlated with the rate of brain atrophy, measured by serial MRI scans over a 2-year period in a well-characterized cohort of 140 patients with SPMS...
November 15, 2016: Wellcome Open Res
https://www.readbyqxmd.com/read/27995398/a-slc39a8-variant-causes-manganese-deficiency-and-glycosylation-and-mitochondrial-disorders
#10
Lisa G Riley, Mark J Cowley, Velimir Gayevskiy, Tony Roscioli, David R Thorburn, Kristina Prelog, Melanie Bahlo, Carolyn M Sue, Shanti Balasubramaniam, John Christodoulou
SLC39A8 variants have recently been reported to cause a type II congenital disorder of glycosylation (CDG) in patients with intellectual disability and cerebellar atrophy. Here we report a novel SLC39A8 variant in siblings with features of Leigh-like mitochondrial disease. Two sisters born to consanguineous Lebanese parents had profound developmental delay, dystonia, seizures and failure to thrive. Brain MRI of both siblings identified bilateral basal ganglia hyperintensities on T2-weighted imaging and cerebral atrophy...
December 19, 2016: Journal of Inherited Metabolic Disease
https://www.readbyqxmd.com/read/27994696/primary-hydatid-cyst-of-the-brain-in-a-child-a-case-report
#11
Alessia Imperato, Alessandro Consales, Marcello Ravegnani, Elio Castagnola, Roberto Bandettini, Andrea Rossi
BACKGROUND: Primary intracranial hydatid cyst is a rare location of human echinococcosis whose spontaneous, traumatic or even iatrogenic rupture, as in case of misdiagnosis, may cause anaphylactic reactions and dissemination. CASE REPORT: We discuss the management of a 9-year-old boy who was admitted to our Emergency Department with an intracranial hypertension syndrome. Head CT scan and brain MRI showed a huge intra-axial right temporo-parieto-occipital cyst with a marginal calcification, associated with left ventricular uncompensated hydrocephalus...
2016: Polish Journal of Radiology
https://www.readbyqxmd.com/read/27988927/cardiac-remodelling-in-a-baboon-model-of-intrauterine-growth-restriction-mimics-accelerated-ageing
#12
Anderson H Kuo, Cun Li, Jinqi Li, Hillary F Huber, Peter W Nathanielsz, Geoffrey D Clarke
KEY POINTS: Rodent models of intrauterine growth restriction (IUGR) successfully identify mechanisms that can lead to short-term and long-term detrimental cardiomyopathies but differences between rodent and human cardiac physiology and placental-fetal development indicate a need for models in precocial species for translation to human development. We developed a baboon model for IUGR studies using a moderate 30% global calorie restriction of pregnant mothers and used cardiac magnetic resonance imaging to evaluate offspring heart function in early adulthood...
February 15, 2017: Journal of Physiology
https://www.readbyqxmd.com/read/27987233/imaging-extracellular-lactate-in-vitro-and-in-vivo-using-cest-mri-and-a-paramagnetic-shift-reagent
#13
Lei Zhang, André F Martins, Yuyan Mai, Piyu Zhao, Alexander M Funk, M Veronica Clavijo Jordan, Shanrong Zhang, Wei Chen, Yunkou Wu, A Dean Sherry
Overproduction of lactate is a hallmark of cancer, yet a method to quantitatively measure lactate production by cancer cells is not straight-forward. Chemical exchange saturation transfer magnetic resonance imaging (CEST MRI) can potentially be used to image lactate but the small difference in chemical shift of the lactate -OH proton and water proton resonances make it challenging. Like other spectroscopic methods, CEST MRI cannot discriminate intracellular lactate from extracellular lactate. Herein, we demonstrate a relatively simple way to shift the lactate -OH proton resonance far away from water by addition of the paramagnetic shift reagent, EuDO3A, while retaining the CEST properties of lactate itself...
February 3, 2017: Chemistry: a European Journal
https://www.readbyqxmd.com/read/27928778/previously-unreported-biallelic-mutation-in-dnajc19-are-sensorineural-hearing-loss-and-basal-ganglia-lesions-additional-features-of-dilated-cardiomyopathy-and-ataxia-dcma-syndrome
#14
Sema Kalkan Ucar, Johannes A Mayr, René G Feichtinger, Ebru Canda, Mahmut Çoker, Saskia B Wortmann
BACKGROUND: Dilated cardiomyopathy (DCM), non-progressive cerebellar ataxia (A), testicular dysgenesis, growth failure, and 3-methylglutaconic aciduria are the hallmarks of DNAJC19 defect (or DCMA syndrome) due to biallelic mutations in DNAJC19. To date DCMA syndrome has been reported in 19 patients from Canada and in two Finnish siblings. The underlying pathomechanism is unknown; however, DNAJC19 is presumed to be involved in mitochondrial membrane related processes (e.g., protein import and cardiolipin remodeling)...
December 8, 2016: JIMD Reports
https://www.readbyqxmd.com/read/27926973/neurologic-injury-in-acidemic-term-infants
#15
Alison G Cahill, Amit M Mathur, Christopher D Smyser, Robert C Mckinstry, Kimberly A Roehl, Julia D López, Terrie E Inder, George A Macones
Objective To determine whether arterial umbilical cord gas (aUCG) pH, in anatomically normal-term infants, could select infants at risk for brain injury identified on magnetic resonance imaging (MRI). Study Design We performed a nested case-control within a prospective cohort of 8,580 women. Cases, with an aUCG pH < 7.10, were temporally, age, and sex matched to controls with an aUCG pH ≥ 7.20. Bi- and multivariable analyses compared the presence and severity of brain injury. Secondary analyses estimated whether elevated arterial base excess or lactate were associated with brain injury...
December 7, 2016: American Journal of Perinatology
https://www.readbyqxmd.com/read/27922496/metabolic-myopathies
#16
Mark A Tarnopolsky
PURPOSE OF REVIEW: Metabolic myopathies are genetic disorders that impair intermediary metabolism in skeletal muscle. Impairments in glycolysis/glycogenolysis (glycogen-storage disease), fatty acid transport and oxidation (fatty acid oxidation defects), and the mitochondrial respiratory chain (mitochondrial myopathies) represent the majority of known defects. The purpose of this review is to develop a diagnostic and treatment algorithm for the metabolic myopathies. RECENT FINDINGS: The metabolic myopathies can present in the neonatal and infant period as part of more systemic involvement with hypotonia, hypoglycemia, and encephalopathy; however, most cases present in childhood or in adulthood with exercise intolerance (often with rhabdomyolysis) and weakness...
December 2016: Continuum: Lifelong Learning in Neurology
https://www.readbyqxmd.com/read/27826747/serum-compounds-of-energy-metabolism-impairment-are-related-to-disability-disease-course-and-neuroimaging-in-multiple-sclerosis
#17
Giacomo Lazzarino, Angela M Amorini, Axel Petzold, Claudio Gasperini, Serena Ruggieri, Maria Esmeralda Quartuccio, Giuseppe Lazzarino, Enrico Di Stasio, Barbara Tavazzi
Multiple sclerosis (MS) is characterized by primary inflammation, demyelination, and progressive neurodegeneration. A biochemical MS feature is neuronal mitochondrial dysfunction, compensated by anaerobic metabolism increase, likely aggravating progression of neurodegeneration. Here, we characterized a pragmatic serum profile of compounds related to mitochondrial energy metabolism of potential clinical use. Blood samples of 518 well characterized (disability, disease course) MS patients and 167 healthy controls were analyzed for serum purines, pyrimidines, creatinine, and lactate...
November 8, 2016: Molecular Neurobiology
https://www.readbyqxmd.com/read/27814822/acr-appropriateness-criteria-palpable-breast-masses
#18
Jennifer A Harvey, Mary C Mahoney, Mary S Newell, Lisa Bailey, Lora D Barke, Carl D'Orsi, Mary K Hayes, Peter M Jokich, Su-Ju Lee, Constance D Lehman, Martha B Mainiero, David A Mankoff, Samir B Patel, Handel E Reynolds, M Linda Sutherland, Bruce G Haffty
A palpable breast mass is one of the most common presenting features of breast carcinoma. However, the clinical features are frequently nonspecific. Imaging performed before biopsy is helpful in characterizing the nature of the mass. For women with clinically detected breast masses, the vast majority will require evaluation with ultrasound. Diagnostic mammography is the initial imaging modality of choice for women aged ≥ 40 years; ultrasound is typically necessary unless a definitively benign mass is identified as the etiology of the clinical finding...
November 2016: Journal of the American College of Radiology: JACR
https://www.readbyqxmd.com/read/27813167/how-often-are-pediatric-patients-with-clinically-amyopathic-dermatomyositis-truly-amyopathic
#19
Edward J Oberle, Michelle L Bayer, Yvonne E Chiu, Dominic O Co
BACKGROUND: Pediatric patients can present with skin manifestations of dermatomyositis without overt weakness (clinically amyopathic juvenile dermatomyositis [JDM]), but it is unclear how often this happens and how often they have subclinical muscle inflammation. OBJECTIVE: Our goal was to determine the frequency of clinically amyopathic JDM and the frequency with which a thorough evaluation uncovers subclinical myositis at a single institution. METHODS: A retrospective review was performed of 46 patients diagnosed with JDM at Children's Hospital of Wisconsin...
November 4, 2016: Pediatric Dermatology
https://www.readbyqxmd.com/read/27789117/acute-ataxia-in-children-a-review-of-the-differential-diagnosis-and-evaluation-in-the-emergency-department
#20
REVIEW
Mauro Caffarelli, Amir A Kimia, Alcy R Torres
Acute ataxia in a pediatric patient poses a diagnostic dilemma for any physician. While the most common etiologies are benign, occasional individuals require urgent intervention. Children with stroke, toxic ingestion, infection, and neuro-inflammatory disorders frequently exhibit ataxia as an essential-if not the only-presenting feature. The available retrospective research utilize inconsistent definitions of acute ataxia, precluding the ability to pool data from these studies. No prospective data exist that report on patients presenting to the emergency department with ataxia...
December 2016: Pediatric Neurology
keyword
keyword
60266
1
2
Fetch more papers »
Fetching more papers... Fetching...
Read by QxMD. Sign in or create an account to discover new knowledge that matter to you.
Remove bar
Read by QxMD icon Read
×

Search Tips

Use Boolean operators: AND/OR

diabetic AND foot
diabetes OR diabetic

Exclude a word using the 'minus' sign

Virchow -triad

Use Parentheses

water AND (cup OR glass)

Add an asterisk (*) at end of a word to include word stems

Neuro* will search for Neurology, Neuroscientist, Neurological, and so on

Use quotes to search for an exact phrase

"primary prevention of cancer"
(heart or cardiac or cardio*) AND arrest -"American Heart Association"