keyword
MENU ▼
Read by QxMD icon Read
search

Whole-body mri

keyword
https://www.readbyqxmd.com/read/28525448/18f-fluorocholine-pet-ct-complementing-the-role-of-dynamic-contrast-enhanced-mri-for-providing-comprehensive-diagnostic-workup-in-prostate-cancer-patients-with-suspected-relapse-following-radical-prostatectomy
#1
Shelvin Kumar Vadi, Baljinder Singh, Rajender K Basher, Ankit Watts, Ashwani K Sood, Anupam Lal, Nandita Kakkar, S K Singh
PURPOSE: The aim of this study was to compare the diagnostic performance of F-fluorocholine (FCH) PET/CT and dynamic contrast-enhanced MRI (DCE-MRI) of pelvis in restaging prostate cancer (PC) patients with biochemical recurrence (BCR) following radical prostatectomy (RP). METHODS: Twenty PC patients who had undergone RP and had BCR were recruited in this study. All the patients underwent whole-body FCH PET/CT and DCE-MRI of the pelvis. An overall pattern of recurrent disease was analyzed, and diagnostic accuracy for the detection of pelvic disease recurrence by the 2 modalities was evaluated by taking histopathologic analysis as the criterion standard...
May 19, 2017: Clinical Nuclear Medicine
https://www.readbyqxmd.com/read/28522533/a-dedicated-network-for-social-interaction-processing-in-the-primate-brain
#2
J Sliwa, W A Freiwald
Primate cognition requires interaction processing. Interactions can reveal otherwise hidden properties of intentional agents, such as thoughts and feelings, and of inanimate objects, such as mass and material. Where and how interaction analyses are implemented in the brain is unknown. Using whole-brain functional magnetic resonance imaging in macaque monkeys, we discovered a network centered in the medial and ventrolateral prefrontal cortex that is exclusively engaged in social interaction analysis. Exclusivity of specialization was found for no other function anywhere in the brain...
May 19, 2017: Science
https://www.readbyqxmd.com/read/28520813/pancreatic-fat-content-by-magnetic-resonance-imaging-in-subjects-with-prediabetes-diabetes-and-controls-from-a-general-population-without-cardiovascular-disease
#3
Sophia D Heber, Holger Hetterich, Roberto Lorbeer, Christian Bayerl, Jürgen Machann, Sigrid Auweter, Corinna Storz, Christopher L Schlett, Konstantin Nikolaou, Maximilian Reiser, Annette Peters, Fabian Bamberg
BACKGROUND/OBJECTIVE: Despite the relevance of pancreatic fat content in the development of metabolic diseases, its association with impaired glucose metabolism, diabetes, and other adipose tissue compartments remains unclear. Thus, we determined differences in pancreatic fat content by magnetic resonance imaging (MRI) between subjects with prediabetes, diabetes, and normal controls in a cohort from the general population. METHODS: Subjects without history of cardiovascular disease with established diabetes or prediabetes as well as normal controls were included and underwent whole-body MRI on a 3T scanner...
2017: PloS One
https://www.readbyqxmd.com/read/28516052/whole-body-mri-of-the-non-human-primate-using-a-clinical-3t-scanner-initial-experiences
#4
Chun-Xia Li, Xiaodong Zhang
With the advent of parallel imaging MRI techniques, whole-body MRI is being increasingly used in clinical diagnosis. However, its application in preclinical research using large animals remains very limited. In the present study, the whole-body MRI techniques for adult macaque monkeys were explored using a conventional clinic 3T scanner. The T1, T2 anatomical images, and MR angiography of adult macaque whole bodies were illustrated. The preliminary results suggest whole-body MRI can be a robust tool to examine multiple organs of non-human primate (NHP) models from head to toe non-invasively and simultaneously using a conventional clinical setting...
April 2017: Quantitative Imaging in Medicine and Surgery
https://www.readbyqxmd.com/read/28516042/sensitivity-enhancement-of-traveling-wave-mri-using-free-local-resonators-an-experimental-demonstration
#5
Xiaoliang Zhang
BACKGROUND: Traveling wave MR uses the far fields in signal excitation and reception, therefore its acquisition efficiency is low in contrast to the conventional near field magnetic resonance (MR). Here we show a simple and efficient method based on the local resonator to improving sensitivity of traveling wave MR technique. The proposed method utilizes a standalone or free local resonator to amplify the radio frequency magnetic fields in the interested target. The resonators have no wire connections to the MR system and thus can be conveniently placed to any place around imaging simples...
April 2017: Quantitative Imaging in Medicine and Surgery
https://www.readbyqxmd.com/read/28515126/radiomanganese-pet-detects-changes-in-functional-%C3%AE-cell-mass-in-mouse-models-of-diabetes
#6
Reinier Hernandez, Stephen A Graves, Trillian Gregg, Halena R VanDeusen, Rachel J Fenske, Haley N Wienkes, Christopher G England, Hector F Valdovinos, Justin J Jeffery, Todd E Barnhart, Gregory W Severin, Robert J Nickles, Michelle E Kimple, Matthew J Merrins, Weibo Cai
The noninvasive measurement of functional β-cell mass would be clinically valuable for monitoring the progression of type 1 and type 2 diabetes, as well as the viability of transplanted insulin-producing cells. Although previous work employing magnetic resonance imaging has shown promise for functional β-cell mass determination through voltage-dependent Ca(2+) channel (VDCC)-mediated internalization of Mn(2+), the clinical utility of this technique is limited by the cytotoxic levels of Mn(2+) contrast agent...
May 17, 2017: Diabetes
https://www.readbyqxmd.com/read/28514760/clinical-study-of-99mtc-3p-rgd2-peptide-imaging-in-osteolytic-bone-metastasis
#7
Guoqiang Shao, Wei Gu, Muhong Guo, Shiming Zang, Jinjing Fu, Shuang Liu, Feng Wang, Zizheng Wang
OBJECTIVE: To investigate the value of integrin αvβ3 targeted imaging with 99mTc-HYNIC-PEG4-E[PEG4-c(RGDfk)]2 (99mTc-3P-RGD2) as a radiotracer in dectecting osteolytic bone metastases. METHODS: This is a retrospective study involving a cohort of 69 consecutive patients including 59 with lung cancer and 10 with other cancers. Patients were required to receive whole body scan (WBS) and regional SPECT/CT imaging with 99mTc-3P-RGD2 (RGD imaging) and 99mTc-MDP (MDP imaging) as a radiotracer successively within days...
April 27, 2017: Oncotarget
https://www.readbyqxmd.com/read/28506521/role-of-imaging-in-response-assessment-and-individualised-treatment-for-sarcomas
#8
H Choi
The first systematic response evaluation criteria were established by WHO, based on the tumor size changes shortly after the computed tomography (CT) technique became available to the daily practice. RECIST, a simplified version of WHO criteria, and its newer version, RECIST1.1 are the currently available international response evaluation criteria in solid tumors and remains based on tumor size changes. While the introduction of molecularly targeted drugs has significantly improved the survival in patient with sarcomas, the evaluation of tumor response has become more complicated...
May 12, 2017: Clinical Oncology: a Journal of the Royal College of Radiologists
https://www.readbyqxmd.com/read/28501537/effects-of-exercise-on-liver-fat-and-metabolism-in-alcohol-drinkers
#9
David Houghton, Kate Hallsworth, Christian Thoma, Sophie Cassidy, Timothy Hardy, Sarah Heaps, Kieren G Hollingsworth, Roy Taylor, Christopher P Day, Steve Masson, Stuart McPherson, Quentin M Anstee, Michael I Trenell
BACKGROUND & AIMS: Exercise is an important component of obesity associated disorders and has been shown to reduce markers of non-alcoholic fatty liver disease (NAFLD). However, little is known about how these effects are influenced by alcohol intake. We performed a randomized controlled trial to investigate the effects of exercise on hepatic triglyceride content (HTGC) and metabolism in overweight or obese patients who consume alcohol. METHODS: We performed a prospective study of 27 patients (mean age 54±11years, body mass index [BMI], 31±4kg/m2) with >5% HTGC in the United Kingdom, consuming alcohol (mean 221±75 g/week)...
May 10, 2017: Clinical Gastroenterology and Hepatology
https://www.readbyqxmd.com/read/28501343/changes-of-renal-sinus-fat-and-renal-parenchymal-fat-during-an-18-month-randomized-weight-loss-trial
#10
Hila Zelicha, Dan Schwarzfuchs, Ilan Shelef, Yftach Gepner, Gal Tsaban, Lilac Tene, Anat Yaskolka Meir, Avital Bilitzky, Oded Komy, Noa Cohen, Nitzan Bril, Michal Rein, Dana Serfaty, Shira Kenigsbuch, Yoash Chassidim, Benjamin Sarusi, Joachim Thiery, Uta Ceglarek, Michael Stumvoll, Matthias Blüher, Yosef S Haviv, Meir J Stampfer, Assaf Rudich, Iris Shai
BACKGROUND & AIMS: Data regarding the role of kidney adiposity, its clinical implications, and its dynamics during weight-loss are sparse. We investigated the effect of long-term weight-loss induced intervention diets on dynamics of renal-sinus-fat, an ectopic fat depot, and %renal-parenchymal-fat, lipid accumulation within the renal parenchyma. METHODS: We randomized 278 participants with abdominal obesity/dyslipidemia to low-fat or Mediterranean/low-carbohydrate diets, with or without exercise...
May 2, 2017: Clinical Nutrition: Official Journal of the European Society of Parenteral and Enteral Nutrition
https://www.readbyqxmd.com/read/28499601/multicomponent-nanocrystals-with-anti-stokes-luminescence-as-contrast-agents-for-modern-imaging-techniques
#11
REVIEW
A N Generalova, B N Chichkov, E V Khaydukov
Lanthanide-doped upconversion nanoparticles (UCNPs) have recently attracted great attention in theranostics due to their exceptional optical and physicochemical properties, which enable the design of a novel UCNP-based nanoplatform for luminescent imaging, temperature mapping, sensing, and therapy. In addition, UCNPs are considered to be ideal building blocks for development of multimodal probes for cells and whole body imaging, exploiting simple variation of host matrix, dopant ions, and surface chemistry...
May 4, 2017: Advances in Colloid and Interface Science
https://www.readbyqxmd.com/read/28486936/effects-of-inaccuracies-in-arterial-path-length-measurement-on-differences-in-mri-and-tonometry-measured-pulse-wave-velocity
#12
Jonathan R Weir-McCall, Faisel Khan, Deirdre B Cassidy, Arsh Thakur, Jennifer Summersgill, Shona Z Matthew, Fiona Adams, Fiona Dove, Stephen J Gandy, Helen M Colhoun, Jill Jf Belch, J Graeme Houston
BACKGROUND: Carotid-femoral pulse wave velocity (cf-PWV) and aortic PWV measured using MRI (MRI-PWV) show good correlation, but with a significant and consistent bias across studies. The aim of the current study was to evaluate whether the differences between cf.-PWV and MRI-PWV can be accounted for by inaccuracies of currently used distance measurements. METHODS: One hundred fourteen study participants were recruited into one of 4 groups: Type 2 diabetes melltus (T2DM) with cardiovascular disease (CVD) (n = 23), T2DM without CVD (n = 41), CVD without T2DM (n = 25) and a control group (n = 25)...
May 10, 2017: BMC Cardiovascular Disorders
https://www.readbyqxmd.com/read/28484627/the-chinchilla-as-a-novel-animal-model-of-pregnancy
#13
Emmeli Mikkelsen, Henrik Lauridsen, Per Mose Nielsen, Haiyun Qi, Thomas Nørlinger, Maria Dahl Andersen, Niels Uldbjerg, Christoffer Laustsen, Puk Sandager, Michael Pedersen
Several parameters are important when choosing the most appropriate animal to model human obstetrics, including gestation period, number of fetuses per gestation and placental structure. The domesticated long-tailed chinchilla (Chinchilla lanigera) is a well-suited and appropriate animal model of pregnancy that often will carry only one offspring and has a long gestation period of 105-115 days. Furthermore, the chinchilla placenta is of the haemomonochorial labyrinthine type and is therefore comparable to the human villous haemomonochorial placenta...
April 2017: Royal Society Open Science
https://www.readbyqxmd.com/read/28484299/radiologic-diagnosis-of-spondylodiscitis-role-of-magnetic-resonance
#14
Naser Ramadani, Kreshnike Dedushi, Serbeze Kabashi, Sefedin Mucaj
INTRODUCTION: Study aim is to report the Magnetic Resonance Imaging (MRI) features of acute and chronic spontaneous spondylodiscitis. CASE REPORT: 57 year old female, complaining of a fever and longstanding cervical pain worsened during physical therapy. METHODS: MR images were acquired using superconductive magnet 1.5 T, with the following sequences: sagittal PD and T2 TSE, sagittal T1 SE, axial PD and T2 TSE (lumbar spine), axial T2 GRE (cervical spine)...
March 2017: Acta Informatica Medica: AIM
https://www.readbyqxmd.com/read/28481336/association-between-individual-fat-depots-and-cardio-metabolic-traits-in-normal-and-overweight-children-adolescents-and-adults
#15
M Hübers, C Geisler, S Plachta-Danielzik, M J Müller
OBJECTIVES: To determine age-related associations between fat mass (FM), regional fat depots and cardiometabolic traits in normal- and overweight children, adolescents and adults. METHODS: Detailed body composition (regional subcutaneous and visceral adipose tissue; SAT, VAT) by whole-body magnetic resonance imaging (MRI), FM and fat-free mass by air-displacement plethysmography, systolic and diastolic blood pressure (SBP, DBP), triglycerides (TG), high-density lipoprotein cholesterol (HDL), plasma glucose and plasma insulin were measured in 433 subjects (BMI: 23...
May 8, 2017: Nutrition & Diabetes
https://www.readbyqxmd.com/read/28479217/physiological-and-psychological-effects-of-testosterone-during-severe-energy-deficit-and-recovery-a-study-protocol-for-a-randomized-placebo-controlled-trial-for-optimizing-performance-for-soldiers-ops
#16
Stefan M Pasiakos, Claire E Berryman, J Philip Karl, Harris R Lieberman, Jeb S Orr, Lee M Margolis, John A Caldwell, Andrew J Young, Monty A Montano, William J Evans, Oshin Vartanian, Owen T Carmichael, Kishore M Gadde, Melissa Harris, Jennifer C Rood
BACKGROUND: The physiological consequences of severe energy deficit include hypogonadism and the loss of fat-free mass. Prolonged energy deficit also impacts physical performance, mood, attentiveness, and decision-making capabilities. This study will determine whether maintaining a eugonadal state during severe, sustained energy deficit attenuates physiological decrements and maintains mental performance. This study will also assess the effects of normalizing testosterone levels during severe energy deficit and recovery on gut health and appetite regulation...
May 4, 2017: Contemporary Clinical Trials
https://www.readbyqxmd.com/read/28478966/a-rare-case-of-multiple-brain-abscess-and-probably-disseminated-phaeohyphomycosis-due-to-cladophialophora-bantiana-in-an-immunosuppressed-individual-from-india
#17
S Lahiri Mukhopadhyay, A Mahadevan, V H Bahubali, R Dawn Bharath, A R Prabhuraj, S Maji, N Siddaiah
Cladophialophora bantiana, a dematiaceous neurotropic mold causes rare and lethal brain abscess, commonly in immunocompetent hosts. We report a rare and probably a case of disseminated infection with this black mold in an immunosuppressed individual from India. A 55-year-old diabetic male presented with severe headache, blurred-vision, behavioural abnormalities, eye-pain and ear-discharge. He was undergoing treatment for hypertension, prostatomegaly and obstructive pulmonary disease. He was on steroids for the past six years for uveitis...
May 3, 2017: Journal de Mycologie Médicale
https://www.readbyqxmd.com/read/28474256/pediatric-imaging-in-dicer1-syndrome
#18
Marta Tijerin Bueno, Claudia Martínez-Ríos, Alejandro De la Puente Gregorio, Rayan A Ahyad, Anita Villani, Harriet Druker, Kalene van Engelen, Bailey Gallinger, Laura Aronoff, Ronald Grant, David Malkin, Mary-Louise C Greer
BACKGROUND: DICER1 syndrome, arising from a mutation in the DICER1 gene mapped to chromosome 14q32, is associated with an increased risk of a range of benign and malignant neoplasms. OBJECTIVE: To determine the spectrum of abnormalities and imaging characteristics in patients with DICER1 syndrome at a tertiary pediatric hospital. MATERIALS AND METHODS: This retrospective analysis evaluated imaging in patients ≤18 years with DICER1 germline variants between January 2004 and July 2016...
May 4, 2017: Pediatric Radiology
https://www.readbyqxmd.com/read/28473594/evaluation-of-sinus-edge-corrected-zte-based-attenuation-correction-in-brain-pet-mri
#19
Jaewon Yang, Florian Wiesinger, Sandeep Kaushik, Dattesh Shanbhag, Thomas A Hope, Peder E Z Larson, Youngho Seo
Purpose: In brain positron emission tomography/magnetic resonance imaging (PET/MRI), the major challenge of zero-echo-time (ZTE)-based attenuation correction (ZTAC) is the misclassification of air/tissue/bone mixtures or their boundaries. Our study aimed to evaluate a sinus/edge corrected (SEC) ZTAC (ZTACSEC), relative to an "uncorrected (UC)" ZTAC (ZTACUC) and a computed tomography (CT) atlas-based attenuation correction (ATAC). Materials and Methods: Whole-body fluorodeoxyglucose PET/MRI scans were performed for twelve patients, following PET/CT scans...
May 4, 2017: Journal of Nuclear Medicine: Official Publication, Society of Nuclear Medicine
https://www.readbyqxmd.com/read/28473069/acr-appropriateness-criteria-%C3%A2-back-pain-child
#20
Timothy N Booth, Ramesh S Iyer, Richard A Falcone, Laura L Hayes, Jeremy Y Jones, Nadja Kadom, Abhaya V Kulkarni, John S Myseros, Sonia Partap, Charles Reitman, Richard L Robertson, Maura E Ryan, Gaurav Saigal, Bruno P Soares, Aylin Tekes-Brady, Andrew T Trout, Nicholas A Zumberge, Brian D Coley, Susan Palasis
It is now generally accepted that nontraumatic back pain in the pediatric population is common. The presence of isolated back pain in a child has previously been an indication for imaging; however, recently a more conservative approach has been suggested using clinical criteria. The presence of constant pain, night pain, and radicular pain, alone or in combination, lasting for 4 weeks or more, constitute clinical red flags that should prompt further imaging. Without these clinical red flags, imaging is likely not indicated...
May 2017: Journal of the American College of Radiology: JACR
keyword
keyword
73151
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"