keyword
MENU ▼
Read by QxMD icon Read
search

Mri and anesthesia

keyword
https://www.readbyqxmd.com/read/29351431/feasibility-of-phase-contrast-cine-magnetic-resonance-imaging-for-measuring-blood-flow-in-the-sheep-fetus
#1
An Qi Duan, Jack R T Darby, Jia Yin Soo, Mitchell C Lock, Meng Yuan Zhu, Lucy V Flynn, Sunthara Rajan Perumal, Christopher K Macgowan, Joseph B Selvanayagam, Janna L Morrison, Mike Seed
Phase-contrast cine MRI (PC-MRI) is the gold-standard non-invasive technique for measuring vessel blood flow and has previously been applied in the human fetal circulation. We aimed to assess the feasibility of using PC-MRI to define the distribution of the fetal circulation in sheep. Fetuses were catheterized at 119-120 days gestation (term, 150 days) and underwent MRI at 123 days gestation under isoflurane anesthesia, ventilated at a FiO2 of 1.0. PC-MRI was performed using a fetal arterial blood pressure catheter signal for cardiac triggering...
December 13, 2017: American Journal of Physiology. Regulatory, Integrative and Comparative Physiology
https://www.readbyqxmd.com/read/29344300/general-anesthesia-inhibits-the-activity-of-the-glymphatic-system
#2
Clement Gakuba, Thomas Gaberel, Suzanne Goursaud, Jennifer Bourges, Camille Di Palma, Aurélien Quenault, Sara Martinez de Lizarrondo, Denis Vivien, Maxime Gauberti
INTRODUCTION: According to the "glymphatic system" hypothesis, brain waste clearance is mediated by a continuous replacement of the interstitial milieu by a bulk flow of cerebrospinal fluid (CSF). Previous reports suggested that this cerebral CSF circulation is only active during general anesthesia or sleep, an effect mediated by the dilatation of the extracellular space. Given the controversies regarding the plausibility of this phenomenon and the limitations of currently available methods to image the glymphatic system, we developed original whole-brain in vivo imaging methods to investigate the effects of general anesthesia on the brain CSF circulation...
2018: Theranostics
https://www.readbyqxmd.com/read/29341023/anesthesia-and-monitoring-of-animals-during-mri-studies
#3
Jordi L Tremoleda, Sven Macholl, Jane K Sosabowski
The use of imaging represents a major impact on the refinement and the reduction of in vivo studies in animal models, in particular for allowing longitudinal monitoring of the onset and the progression of disease within the same animal, and studying the biological effects of drug candidate and their therapeutic effectiveness. But the use of imaging procedures can affect animal physiology, and the need to anesthetize the animals for imaging entails potential health risks. During anesthesia, there is an inevitable autonomic nervous system depression which induces cardiovascular depression, respiratory depression, and hypothermia...
2018: Methods in Molecular Biology
https://www.readbyqxmd.com/read/29339139/improved-coronary-magnetic-resonance-angiography-using-gadobenate-dimeglumine-in-pediatric-congenital-heart-disease
#4
Miguel Silva Vieira, Markus Henningsson, Nathalie Dedieu, Vassilios S Vassiliou, Aaron Bell, Sujeev Mathur, Kuberan Pushparajah, Carlos Alberto Figueroa, Tarique Hussain, René Botnar, Gerald F Greil
BACKGROUND: CMRA in pediatrics remains challenging due to the smaller vessel size, high heart rates (HR), potential image degradation caused by limited patient cooperation and long acquisition times. High-relaxivity contrast agents have been shown to improve coronary imaging in adults, but limited data is available in children. We sought to investigate whether gadobenate dimeglumine (Gd-BOPTA) together with self-navigated inversion-prepared coronary magnetic resonance angiography (CMRA) sequence design improves coronary image quality in pediatric patients...
January 12, 2018: Magnetic Resonance Imaging
https://www.readbyqxmd.com/read/29331574/a-medicare-cost-analysis-of-mri-versus-ct-based-high-dose-rate-brachytherapy-of-the-cervix-can-mri-based-planning-be-less-costly
#5
Amishi Bajaj, Grant Harmon, John Weaver, Brendan Martin, Michael Mysz, Murat Surucu, John C Roeske, Andre A Konski, William Small, Matthew M Harkenrider
PURPOSE: While some institutions deliver multiple fractions per implant for MRI-based planning, it is common for only one fraction to be delivered per implant with CT-based cervical brachytherapy. The purpose of this study was to compare physician costs, hospital costs, and overall costs for cervical cancer patients treated with either CT-based or MRI-based high-dose-rate (HDR) cervical brachytherapy to determine if MRI-based brachytherapy as described can be financially feasible. METHODS AND MATERIALS: We identified 40 consecutive patients treated with curative intent cervical brachytherapy...
January 10, 2018: Brachytherapy
https://www.readbyqxmd.com/read/29330835/international-guidelines-for-groin-hernia-management
#6
(no author information available yet)
INTRODUCTION: Worldwide, more than 20 million patients undergo groin hernia repair annually. The many different approaches, treatment indications and a significant array of techniques for groin hernia repair warrant guidelines to standardize care, minimize complications, and improve results. The main goal of these guidelines is to improve patient outcomes, specifically to decrease recurrence rates and reduce chronic pain, the most frequent problems following groin hernia repair. They have been endorsed by all five continental hernia societies, the International Endo Hernia Society and the European Association for Endoscopic Surgery...
January 12, 2018: Hernia: the Journal of Hernias and Abdominal Wall Surgery
https://www.readbyqxmd.com/read/29325381/-longterm-surgery-outcome-of-m%C3%A3-bius-syndrome
#7
J Cen, X L Kang, J Yu, L Y Dong, Y Wei, K X Zhao
Objective: To investigate clinical features and the long-term surgery results of Möbius syndrome patients. Methods: This investigation presents a retrospective study of Möbius syndrome in 7 children we found since 2009. All 7 patients had MRI scan, ocular alignment in primary position, the limitation of versions and ductions and forced duction under general anesthesia. Early surgery is done to the 7 esotropia children. The pre-operative and post-operative outcomes, including the ocular alignment, deviation measurements and ocular rotations, were evaluated and compared...
December 11, 2017: [Zhonghua Yan Ke za Zhi] Chinese Journal of Ophthalmology
https://www.readbyqxmd.com/read/29310392/cavernous-hemangiomas-of-the-temporalis-muscle-with-prominent-formation-of-phleboliths-case-report-and-review-of-the-literature
#8
Bin Cui, Dan-Hui Wang, Guan-Jun Wang, Peng Cheng, Feng Zhang, Xiao-Bing Duan, Zhong-Fu Zhao
RATIONALE: Hemangiomas are benign tumors characterized by an abnormal proliferation of blood vessels, most often occur in the skin and subcutaneous tissue, intramuscular hemangioma, a distinctive type of hemangioma within the skeletal muscle, account for <1% of all hemangiomas, temporalis muscle is a very uncommon site, cavernous hemangioma of the temporalis muscle with prominent formation of phleboliths is rare reported. PATIENT CONCERNS: A 62-year-old man presented with a slowly increased mass in his right temporal fossa...
December 2017: Medicine (Baltimore)
https://www.readbyqxmd.com/read/29310363/perianal-atypical-leiomyoma-a-case-report
#9
Pingliang Sun, Hailing Ou, Shen Huang, Longxiang Wei, Sen Zhang, Jiali Liu, Shuguang Geng, Kun Yang
RATIONALE: Reports on perianal atypical leiomyoma, a perianal tumor, are rare. We confirmed a perianal atypical leiomyoma by its clinical presentation, magnetic resonance imaging findings, and immunohistochemistry. PATIENT CONCERNS: A 28-year-old female with a perianal mass found more than 4 years ago. The 5cm_4cm_4cm sized mass was located on the left side of the anus and vagina; The magnetic resonance imaging (MRI) scan revealed: A 4.1cm × 5.2cm × 4...
December 2017: Medicine (Baltimore)
https://www.readbyqxmd.com/read/29286486/whole-body-pet-mri-of-pediatric-patients-the-details-that-matter
#10
Anuj Pareek, Anne M Muehe, Ashok J Theruvath, Praveen K Gulaka, Sheri L Spunt, Heike E Daldrup-Link
Integrated PET/MRI is a hybrid imaging technique enabling clinicians to acquire diagnostic images for tumor assessment and treatment monitoring with both high soft tissue contrast and added metabolic information. Integrated PET/MRI has shown to be valuable in the clinical setting and has many promising future applications. The protocol presented here will provide step-by-step instructions for the acquisition of whole-body 2-deoxy-2-(18F)fluoro-D-glucose (18F-FDG) PET/MRI data in children with cancer. It also provides instructions on how to combine a whole-body staging scan with a local tumor scan for evaluation of the primary tumor...
December 19, 2017: Journal of Visualized Experiments: JoVE
https://www.readbyqxmd.com/read/29273384/surgical-technique
#11
REVIEW
Marc Guénot, Axel Lebas, Bertrand Devaux, Sophie Colnat-Coulbois, Georg Dorfmuller, Aileen McGonigal, Nicolas Reyns, Vianney Gilard, Stéphane Derrey, Jean-Christophe Sol, Stéphane Clémenceau
In SEEG, as for any surgical procedure, the benefit/risk ratio is a key-point. This implies rigorous clinical practice in terms of indication, information delivered to the patient, and surgical technique. Numerous technical options may be used to achieve this goal. All are valuable, as long as they are executed with rigor and consistency. Intracranial bleeding represents the main risk of the procedure (1-4% of cases). The procedure also carries a risk of infection (0.8%), death (total of 6 reported cases in all the literature, <0...
December 19, 2017: Neurophysiologie Clinique, Clinical Neurophysiology
https://www.readbyqxmd.com/read/29260390/parent-perspectives-and-preferences-for-strategies-regarding-nonsedated-mri-scans-in-a-pediatric-oncology-population
#12
Breya Walker, Heather M Conklin, Doralina L Anghelescu, Lacey P Hall, Wilburn E Reddick, Robert Ogg, Lisa M Jacola
PURPOSE: Children with cancer frequently require MRI scans for clinical purposes. Sedation with general anesthesia (GA) is often used to promote compliance, reduce motion, and alleviate anxiety. The use of GA for MRI scans is costly in terms of time, personnel, and medications. In addition, prominent risks are associated with anesthesia exposure in patients with complex medical conditions. Successful behavioral interventions have been implemented in clinical research settings to promote scan success and compliance...
December 19, 2017: Supportive Care in Cancer: Official Journal of the Multinational Association of Supportive Care in Cancer
https://www.readbyqxmd.com/read/29249068/melatonin-as-an-alternative-sedation-method-during-magnetic-resonance-imaging-in-preschool-children-with-musculoskeletal-problems
#13
Agneza Marija Pasini, Josip Marjanović, Goran Roić, Nikola Dukarić, Ana Tripalo Batoš, Zoran Bahtijarević, Alenka Gagro
Magnetic resonance imaging (MRI) in preschool children is often challenging due to excessive motion artifacts. Sedation or general anesthesia (GA) is commonly used to prevent children from moving in the MRI scanner, with increased risk for cardiopulmonary complications and requirement for skilled personnel. Herein, we investigated whether oral melatonin, a natural hormone implicated in circadian rhythm regulation, could be used as an alternative sedation method prior to the MRI in preschool children with musculoskeletal problems...
December 16, 2017: European Journal of Pediatrics
https://www.readbyqxmd.com/read/29243977/factors-predicting-reoperation-of-chronic-subdural-hematoma-following-primary-surgical-evacuation
#14
Rouzbeh Motiei-Langroudi, Martina Stippler, Siyu Shi, Nimer Adeeb, Raghav Gupta, Christoph J Griessenauer, Efstathios Papavassiliou, Ekkehard M Kasper, Jeffrey Arle, Ron L Alterman, Christopher S Ogilvy, Ajith J Thomas
OBJECTIVE Chronic subdural hematoma (CSDH) is commonly encountered in neurosurgical practice. However, surgical evacuation remains complicated by a high rate of reoperation. The optimal surgical approach to reduce the reoperation rate has not been determined. In the current study, the authors evaluated the prognostic value of clinical and radiographic factors to predict reoperation in the context of CSDH. METHODS A retrospective review of 325 CSDH patients admitted to an academic medical center in the United States, between 2006 and 2016, was performed...
December 15, 2017: Journal of Neurosurgery
https://www.readbyqxmd.com/read/29243490/percutaneous-cryoablation-of-breast-tumors-in-patients-with-stable-metastatic-breast-cancer-safety-feasibility-and-efficacy
#15
H Beji, F Pilleul, R Picard, O Tredan, A Bouhamama, M Peix, E Mavrovi, C Mastier
PURPOSE: To evaluate safety, feasibility, and efficacy of percutaneous cryoablation of breast tumors in patients with clinically stable metastatic breast cancer, and to compare the findings with reports on alternative procedures, namely surgery and local radiotherapy. METHODS: Seventeen female patients (average age of 54.8 years +/- 10.8 ; range 37-72) with primary breast tumor not surgically treated because of metastatic disease were included. Patients were treated for their primary lesion by percutaneous cryotherapy in period of stable disease...
December 15, 2017: British Journal of Radiology
https://www.readbyqxmd.com/read/29240339/traumatic-hip-dislocation-in-pediatric-patients
#16
Antti Stenroos, Topi Laaksonen, Yrjänä Nietosvaara
Traumatic hip dislocations constitute approximately 5% of all pediatric dislocations and typically result from high-energy trauma. However, pediatric hip dislocations can also occur as a result of minor energy due to flexibility of the joint structures of the immature hip. Children with a posteriorly dislocated hip present with the injured hip in flexion, adduction and internal rotation. Spontaneous relocation of hip dislocation is frequent and a thorough physical examination of the whole lower extremity is always required to reduce the chance of missing hip dislocation/subluxation...
2017: Duodecim; Lääketieteellinen Aikakauskirja
https://www.readbyqxmd.com/read/29232269/mr-guided-biopsy-and-focal-therapy-new-options-for-prostate-cancer-management
#17
Fuad F Elkhoury, Demetrios N Simopoulos, Leonard S Marks
PURPOSE OF REVIEW: Options for prostate cancer management are rapidly expanding. The recent advent of MRI technology has led to guided prostate biopsies by radiologists working in-bore or by urologists using MR/US fusion technology. The resulting tumor visualization now provides the option of focal therapy. Currently available are highly directed energies - focused ultrasound (HIFU), cryotherapy, and laser - all offering the hope of curing prostate cancer with few side effects. RECENT FINDINGS: MRI now enables visualization of many prostate cancers...
December 11, 2017: Current Opinion in Urology
https://www.readbyqxmd.com/read/29219753/resection-of-primary-motor-cortex-tumors-feasibility-and-surgical-outcomes
#18
Stephen T Magill, Seunggu J Han, Jing Li, Mitchel S Berger
OBJECTIVE Brain tumors involving the primary motor cortex are often deemed unresectable due to the potential neurological consequences that result from injury to this region. Nevertheless, we have challenged this dogma for many years and used asleep, as well as awake, intraoperative stimulation mapping to maximize extent of resection. It remains unclear whether these tumors can be resected with acceptable morbidity, whether performing the surgery with the patient awake or asleep impacts extent of resection, and how stimulation mapping influences outcomes...
December 8, 2017: Journal of Neurosurgery
https://www.readbyqxmd.com/read/29206326/assessing-the-influence-of-isoflurane-anesthesia-on-cardiac-metabolism-using-hyperpolarized-1-13-c-pyruvate
#19
Jonas Steinhauser, Patrick Wespi, Grzegorz Kwiatkowski, Sebastian Kozerke
Isoflurane is a frequently used anesthetic in small-animal dissolution dynamic nuclear polarization-magnetic resonance imaging (DNP-MRI) studies. Although the literature suggests interactions with mitochondrial metabolism, the influence of the compound on cardiac metabolism has not been assessed systematically to date. In the present study, the impact of low versus high isoflurane concentration was examined in a crossover experiment in healthy rats. The results revealed that cardiac metabolism is modulated by isoflurane concentration, showing increased [1-13 C]lactate and reduced [13 C]bicarbonate production during high isoflurane relative to low isoflurane dose [average differences: +16% [1-13 C]lactate/total myocardial carbon, -22% [13 C]bicarbonate/total myocardial carbon; +51% [1-13 C]lactate/[13 C]bicarbonate]...
December 5, 2017: NMR in Biomedicine
https://www.readbyqxmd.com/read/29204167/interstitial-brachytherapy-for-orbital-soft-tissue-sarcoma-an-innovative-technique
#20
Siddhartha Laskar, Avinash Pilar, Nehal Khanna, Yogesh Ghadi
Purpose: To report an innovative technique of interstitial brachytherapy developed for treatment of orbital soft tissue tumors. Material and methods: A 4-month-old child diagnosed with rhabdomyosarcoma of orbit was treated with multiagent chemotherapy (CTh) and brachytherapy. Pre-planning computed tomography (CT) images were obtained and clinical target volume (CTV) was defined using the pre-treatment magnetic resonance imaging (MRI). Brachytherapy plan was generated for deciding optimal catheter placement...
October 2017: Journal of Contemporary Brachytherapy
keyword
keyword
3047
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"