keyword
MENU ▼
Read by QxMD icon Read
search

Mri and anesthesia

keyword
https://www.readbyqxmd.com/read/28936429/clinical-pet-mri-in-neurooncology-opportunities-and-challenges-from-a-single-institution-perspective
#1
REVIEW
Lisbeth Marner, Otto M Henriksen, Michael Lundemann, Vibeke Andrée Larsen, Ian Law
PURPOSE: Magnetic resonance imaging (MRI) plays a key role in neurooncology, i.e., for diagnosis, treatment evaluation and detection of recurrence. However, standard MRI cannot always separate malignant tissue from other pathologies or treatment-induced changes. Advanced MRI techniques such as diffusion-weighted imaging, perfusion imaging and spectroscopy show promising results in discriminating malignant from benign lesions. Further, supplemental imaging with amino acid positron emission tomography (PET) has been shown to increase accuracy significantly and is used routinely at an increasing number of sites...
2017: Clinical and Translational Imaging: Reviews in Nuclear Medicine and Molecular Imaging
https://www.readbyqxmd.com/read/28929282/anoperineal-lesions-in-crohn-s-disease-french-recommendations-for-clinical-practice
#2
REVIEW
D Bouchard, L Abramowitz, G Bouguen, C Brochard, A Dabadie, V de Parades, M Eléouet-Kaplan, N Fathallah, J-L Faucheron, L Maggiori, Y Panis, F Pigot, P Rouméguère, A Sénéjoux, L Siproudhis, G Staumont, J-M Suduca, B Vinson-Bonnet, J-D Zeitoun
BACKGROUND: Anoperineal lesion (APL) occurrence is a significant event in the evolution of Crohn's disease (CD). Management should involve a multidisciplinary approach combining the knowledge of the gastroenterologist, the colorectal surgeon and the radiologist who have appropriate experience in this area. Given the low level of evidence of available medical and surgical strategies, the aim of this work was to establish a French expert consensus on management of anal Crohn's disease. These recommendations were led under the aegis of the Société Nationale Française de Colo-Proctologie (SNFCP)...
September 19, 2017: Techniques in Coloproctology
https://www.readbyqxmd.com/read/28927746/-proposal-of-screening-for-diffuse-low-grade-gliomas-in-the-population-from-20-to-40years
#3
Emmanuel Mandonnet, Luc Taillandier, Hugues Duffau
Diffuse low-grade gliomas (DLGG) are cerebral tumors occurring in young adults, with an inescapable progression to higher grade of malignancy, resulting in functional impairment and death. DLGG evolve in several phases: an asymptomatic period despite a slow radiological growth; a period in which inaugural symptoms occur, usually epilepsy with possible mild cognitive disorders; then a phase with malignant transformation generating disabling neurological deficits; and ultimately the terminal stage. Early maximal surgical resection significantly increases overall survival while preserving quality of life...
September 15, 2017: La Presse Médicale
https://www.readbyqxmd.com/read/28911827/single-site-robot-assisted-laparoscopic-staging-surgery-for-presumed-clinically-early-stage-ovarian-cancer
#4
Ji Geun Yoo, Woo Jin Kim, Keun Ho Lee
STUDY OBJECTIVE: To present the demonstration of Robotic-assisted laparoendoscopic single-site(R-LESS) staging surgery in presumed clinically early stage ovarian cancer. DESIGN: A step-by-step presentation of the procedure using video (Canadian Task Force classification III). SETTING: A university hospital. INTERVENTION: A 29-year-old woman was referred from a local clinic for an 8x6cm sized left ovarian tumor suggesting malignancy...
September 11, 2017: Journal of Minimally Invasive Gynecology
https://www.readbyqxmd.com/read/28899835/successful-treatment-by-microvascular-decompression-surgery-of-a-patient-with-hemiparesis-due-to-vertebral-artery-compression-of-the-medulla-oblongata-a-case-report-and-literature-review
#5
Jibin Ren, Hongtao Sun, Yunfeng Diao, Xuegang Niu, Hang Wang, Zhengjun Wei, Fei Yuan
Little literature is available on hemiparesis caused by vascular medullary compression, which may occur as a result of dolichoectasia of the vertebrobasilar arterial system. In this paper, we report a case of vertebral artery compression of the medulla oblongata in a 67-year old woman. The patient was hypertensive and developed hemiparesis and intermittent spasms for five years, which became worsened for one year. Cranial nerve MRI showed compression of the medulla oblongata by the left vertebral artery. Motor evoked potential (MEP) examination showed abnormal conduction of MEPs of bilateral toe abductors...
September 9, 2017: World Neurosurgery
https://www.readbyqxmd.com/read/28890046/effect-of-multiple-neonatal-sevoflurane-exposures-on-hippocampal-apolipoprotein-e%C3%A2-levels-and-learning-and-memory-abilities
#6
Junli Jiang, Chunchun Tang, Juanjuan Ren, Chao Zhang, Liang Dong, Zhaoqiong Zhu
BACKGROUND: Sevoflurane anesthesia is widely used in pediatric patients. In this study, we investigated whether early multiple exposures to sevoflurane induced cognitive dysfunction by altering the hippocampal expression of ApoE later in development. METHODS: Sprague-Dawley rats were exposed to 2.6% sevoflurane at postnatal day 7 (P7), P14, and P21 for 2 h. The ability of learning and memory was assessed using the Morris water maze at P37 and P97. The hippocampal volume was measured by magnetic resonance imaging (MRI) at P37 and P97...
August 31, 2017: Pediatrics and Neonatology
https://www.readbyqxmd.com/read/28889128/hemorrhage-detection-and-incidence-during-magnetic-resonance-guided-deep-brain-stimulator-implantations
#7
Alastair J Martin, Philip A Starr, Jill L Ostrem, Paul S Larson
BACKGROUND/AIMS: Intraoperative magnetic resonance imaging (iMRI) is increasingly used to implant deep brain stimulator (DBS) electrodes. The approach has the advantages of a high targeting accuracy, minimization of brain penetrations, and allowance of implantation under general anesthesia. The hemorrhagic complications of iMRI-guided DBS implantation have not been studied in a large series. We report on the incidence and characteristics of hemorrhage during these procedures. METHODS: Hemorrhage incidence was assessed in a series of 231 iMRI procedures (374 electrodes implanted)...
September 9, 2017: Stereotactic and Functional Neurosurgery
https://www.readbyqxmd.com/read/28889004/quantitative-vascular-neuroimaging-of-the-rat-brain-using-superparamagnetic-nanoparticles-new-insights-on-vascular-organization-and-brain-function
#8
Codi A Gharagouzloo, Liam Timms, Ju Qiao, Zihang Fang, Joseph Nneji, Aniket Pandya, Praveen Kulkarni, Anne L van de Ven, Craig Ferris, Srinivas Sridhar
A method called Quantitative Ultra-Short Time-to-Echo Contrast Enhanced (QUTE-CE) Magnetic Resonance Imaging (MRI) which utilizes superparamagnetic iron oxide nanoparticles (SPIONs) as a contrast agent to yield positive contrast angiograms with high clarity and definition is applied to the whole live rat brain. QUTE-CE MRI intensity data are particularly well suited for measuring quantitative cerebral blood volume (qCBV). A global map of qCBV in the awake resting-state with unprecedented detail was created via application of a 3D MRI rat brain atlas with 173 segmented and annotated brain areas...
September 6, 2017: NeuroImage
https://www.readbyqxmd.com/read/28875141/intramuscular-hemangioma-in-buccal-cheek-a-case-report
#9
Jae Woo Park, Chul-Hwan Kim, Chan Woong Moon
Hemangioma is the most common benign tumor of a vascular origin, and is characterized by the abnormal proliferation of blood vessels. Intramuscular hemangioma (IMH) usually involves the skeletal muscles of the trunk or limbs, but rarely occurs in the head and neck region. This case report presents a patient with IMH showing multiple phleboliths in the buccal cheek. A 13-year-old boy was referred for the evaluation and management of painful swelling of the left cheek that had gradually increased in size over a 6 year duration...
August 2017: Journal of the Korean Association of Oral and Maxillofacial Surgeons
https://www.readbyqxmd.com/read/28844125/stem-cell-therapy-for-avascular-necrosis-of-femoral-head-in-sickle-cell-disease-report-of-11-cases-and-review-of-literature
#10
Mir Sadat-Ali, Md Q Azam, Ezzat M Elshabouri, Ahmad M Tantawy, Sadananda Acharya
Background and Objective: Sickle cell disease (SCD) is quite common in eastern Saudi Arabia and Avascular necrosis of femoral head (ANFH) occurs in 30% of the young patients leading to early joint arthroplasty. This study was conducted to assess the benefits of injection of osteoblasts in the avascular lesions of the head of femur. Patients and Methods: A preset technique was used, 10 CC of bone marrow aspiration was performed under local anesthesia and aseptic technique...
August 31, 2017: International Journal of Stem Cells
https://www.readbyqxmd.com/read/28817401/challenges-in-the-anesthetic-management-of-ambulatory-patients-in-the-mri-suites
#11
Jasper Deen, Yzabel Vandevivere, Peter Van de Putte
PURPOSE OF REVIEW: MRI is becoming an indispensable diagnostic tool. The need for prolonged motion-free periods has substantially increased the need for deep sedation or anesthesia in a challenging environment. This review summarises recent literature with respect to pharmacological sedative strategies, nonpharmacological alternative approaches, airway management and safety issues in the ambulatory setting. RECENT FINDINGS: Most literature researches the pediatric patient population...
August 16, 2017: Current Opinion in Anaesthesiology
https://www.readbyqxmd.com/read/28816151/quantification-of-pediatric-abdominal-organ-motion-with-a-4-dimensional-magnetic-resonance-imaging-method
#12
Jinsoo Uh, Matthew J Krasin, Yimei Li, Xingyu Li, Christopher Tinkle, John T Lucas, Thomas E Merchant, Chiaho Hua
PURPOSE: To characterize respiration-induced abdominal organ motion in children receiving radiation treatment with a 4-dimensional (4D) magnetic resonance imaging (MRI) method. METHODS AND MATERIALS: We analyzed free-breathing coronal 4D MRI datasets acquired from 35 patients (aged 1-20 years) with abdominal tumors. A deformable image registration of the 4D MRI datasets was performed to derive motion trajectories of selected anatomic landmarks, from which organ motions were quantified...
September 1, 2017: International Journal of Radiation Oncology, Biology, Physics
https://www.readbyqxmd.com/read/28810590/diagnosis-and-surgical-treatment-of-cervical-macrocystic-lymphatic-malformations-in-infants
#13
Jing Ma, Ruan Biao, Fan Lou, Ken Lin, Ying-Qin Gao, Mei-Lan Wang, Yan-Li Yang, Tie-Song Zhang
The treatment of lymphatic malformations (LMs) represents a great clinical challenge. The present study reported on the treatment of 68 infants with cervical macrocystic LMs using surgical resection. The cases were retrospectively analyzed. All patients underwent pre-operative ultrasonography, computed tomography (CT), and magnetic resonance imaging (MRI) examinations. The surgery was performed under general anesthesia with endotracheal intubation. Ultrasonograms showed that 24 cases were monolocular, 44 were multilocular, 16 had no echo, 20 had a uniform low-level echo and 32 had a non-uniform low-level echo...
August 2017: Experimental and Therapeutic Medicine
https://www.readbyqxmd.com/read/28796602/contrast-enhanced-magnetic-resonance-imaging-of-gastric-emptying-and-motility-in-rats
#14
Kun-Han Lu, Jiayue Cao, Steven Oleson, Terry L Powley, Zhongming Liu
The assessment of gastric emptying and motility in humans and animals typically requires radioactive imaging or invasive measurements. Here, we developed a robust strategy to image and characterize gastric emptying and motility in rats based on contrast-enhanced magnetic resonance imaging (MRI) and computer-assisted image processing. The animals were trained to naturally consume a gadolinium-labeled dietgel while bypassing any need for oral gavage. Following this test meal, the animals were scanned under low-dose anesthesia for high-resolution T1-weighted MRI in 7-Tesla, visualizing the time-varying distribution of the meal with greatly enhanced contrast against non-GI tissues...
August 8, 2017: IEEE Transactions on Bio-medical Engineering
https://www.readbyqxmd.com/read/28764881/dosimetric-impact-of-intrafraction-changes-in-mr-guided-high-dose-rate-hdr-brachytherapy-for-prostate-cancer
#15
Alexandra Rink, Jette Borg, Anna Simeonov, Gerald O'Leary, Joelle Helou, Cynthia Ménard, Peter Chung, David A Jaffray, Alejandro Berlin
PURPOSE: To assess changes in implant and treatment volumes through the course of a prostate high-dose-rate brachytherapy procedure and their impact on plan quality metrics. METHODS AND MATERIALS: Sixteen MRI-guided high-dose-rate procedures included a post-treatment MR (ptMR) immediately after treatment delivery (135 min between MR scans). Target and organs at risk (OARs) were contoured, and catheters were reconstructed. The delivered treatment plan was applied to the ptMR image set...
July 29, 2017: Brachytherapy
https://www.readbyqxmd.com/read/28739517/novel-use-of-the-leksell-gamma-frame-for-stereotactic-biopsy-of-posterior-fossa-lesions-technical-note
#16
Shiro Horisawa, Hiroshi Nakano, Takakzu Kawamata, Takaomi Taira
BACKGROUND: Stereotactic transcerebellar biopsies of brainstem tumors have often been reported. The Leksell frame or Cosman-Roberts-Wells frame is often used in transcerebellar approaches. However, to access lesions via the cerebellum, these frames should be secured as inferiorly on the cranium as possible, which can require exaggerated neck flexion and limit the flexible trajectory to the target. To overcome these disadvantages, we have devised a new way to use the Leksell frame for transcerebellar approaches...
July 21, 2017: World Neurosurgery
https://www.readbyqxmd.com/read/28735135/endoscope-assisted-abscess-drainage-secondary-to-endoscope-assisted-tlif-1-year-follow-up
#17
Karthik Madhavan, Steven Shelby Burks, Lee Onn Chieng, Anand Veeravagu, Michael Y Wang
INTRODUCTION: Endoscopic discectomy and fusions have been gaining popularity in the recent past and are noted to be safe for its application in elderly population. It involves ultra-small incision for discectomy followed by placement of percutaneous screws in awake patients. Treatment of advanced spinal pathology using endoscope-assisted techniques are challenging. Although not common with endoscopic approach, post-operative infection can be problematic as there are no established guidelines on its management...
July 19, 2017: World Neurosurgery
https://www.readbyqxmd.com/read/28716031/a-rare-case-of-intradural-and-extramedullary-epidermoid-cyst-after-repetitive-epidural-anesthesia-case-report-and-review-of-the-literature
#18
Haruki Funao, Norihiro Isogai, Kenshi Daimon, Yuichiro Mima, Hitoshi Sugiura, Takahiro Koyanagi, Masaya Nakamura, Morio Matsumoto, Ken Ishii
BACKGROUND: Spinal epidermoid cysts are benign tumors, which are rarely seen as an intradural extramedullary spinal cord tumor in the conus medullaris region. Acquired spinal epidermoid cysts are mostly caused by iatrogenic procedures, such as lumbar puncture, and the majority of acquired spinal epidermoid cysts have been reported below the L1 level, because lumbar puncture is usually performed around the iliac crest. Here, we report an extremely rare case of an epidermoid cyst that occurred as an intradural and extramedullary spinal cord tumor attached to the conus medullaris after repetitive epidural anesthesia...
July 17, 2017: World Journal of Surgical Oncology
https://www.readbyqxmd.com/read/28667359/sensitivity-of-susceptibility-weighted-imaging-in-detecting-developmental-venous-anomalies-and-associated-cavernomas-and-microhemorrhages-in-children
#19
Allen Young, Andrea Poretti, Thangamadhan Bosemani, Reema Goel, Thierry A G M Huisman
PURPOSE: Developmental venous anomalies (DVA) are common neuroimaging abnormalities that are traditionally diagnosed by contrast-enhanced T1-weighted images as the gold standard. We aimed to evaluate the sensitivity of SWI in detecting DVA and associated cavernous malformations (CM) and microhemorrhages in children in order to determine if SWI may replace contrast-enhanced MRI sequences. METHODS: Contrast-enhanced T1-weighted images were used as diagnostic gold standard for DVA...
August 2017: Neuroradiology
https://www.readbyqxmd.com/read/28665249/improved-operative-efficiency-using-a-real-time-mri-guided-stereotactic-platform-for-laser-amygdalohippocampotomy
#20
Allen L Ho, Eric S Sussman, Arjun V Pendharkar, Scheherazade Le, Alessandra Mantovani, Alaine C Keebaugh, David R Drover, Gerald A Grant, Max Wintermark, Casey H Halpern
OBJECTIVE MR-guided laser interstitial thermal therapy (MRgLITT) is a minimally invasive method for thermal destruction of benign or malignant tissue that has been used for selective amygdalohippocampal ablation for the treatment of temporal lobe epilepsy. The authors report their initial experience adopting a real-time MRI-guided stereotactic platform that allows for completion of the entire procedure in the MRI suite. METHODS Between October 2014 and May 2016, 17 patients with mesial temporal sclerosis were selected by a multidisciplinary epilepsy board to undergo a selective amygdalohippocampal ablation for temporal lobe epilepsy using MRgLITT...
June 30, 2017: Journal of Neurosurgery
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"