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https://www.readbyqxmd.com/read/27872353/feed-and-wrap-mri-technique-in-infants
#1
Nina K Antonov, Carrie B Ruzal-Shapiro, Kimberly D Morel, William S Millar, Sudha Kashyap, Christine T Lauren, Maria C Garzon
The feed and wrap technique refers to the use of feeding and swaddling to induce natural sleep in infants. It can be used prior to an magnetic resonance imaging (MRI) scan, avoiding sedation or anesthesia. We performed a retrospective review of feed and wrap MRI scans in infants 3 months or younger over a 2-year period at our center (279 scans) to evaluate the efficacy of this technique. Of scan results reviewed, 79% addressed the clinical question, 20% partially addressed the clinical question, and 1% were technically inadequate...
November 20, 2016: Clinical Pediatrics
https://www.readbyqxmd.com/read/27858672/guide-wire-breakage-during-posterolateral-endoscopic-lumbar-discectomy-procedure-a-case-report
#2
Xiaofei Guan, Shan Zhao, Xin Gu, Hailong Zhang, Shisheng He
OBJECTIVE: To present a unique case of guide wire breakage as a rare complication during posterolateral endoscopic lumbar discectomy. BACKGROUND: Posterolateral endoscopic lumbar discectomy (PELD) has become a routinely performed minimally invasive spinal procedure. However, several complications of PELD have attracted our concerns, including the intraoperative injury to neural and vascular structures and failure of the surgery. We have countered a rare intraoperative complication of guidewire breakage during a PELD procedure, as far as we know, this has not been reported previously, and we wish to draw attention to this hazard...
November 4, 2016: Journal of Back and Musculoskeletal Rehabilitation
https://www.readbyqxmd.com/read/27848124/reversible-cerebral-vasoconstriction-syndrome-and-posterior-reversible-encephalopathy-syndrome-associated-with-intracranial-hypotension
#3
Katharina Feil, Robert Forbrig, Franziska S Thaler, Julian Conrad, Suzette Heck, Franziska Dorn, Hans-Walter Pfister, Andreas Straube
BACKGROUND: Reversible cerebral vasoconstriction syndrome (RCVS) and posterior reversible encephalopathy syndrome (PRES) are both rare disorders. The pathophysiology of both diseases is not yet fully understood. METHODS: We report the unique case of a 19-year-old comatose woman who was brought to the ER after a series of generalized tonic-clonic seizures 6 days post peridural anesthesia for cesarean section. Vital signs and initial laboratory testing including urine analysis and drug screening were unremarkable...
November 15, 2016: Neurocritical Care
https://www.readbyqxmd.com/read/27774631/resting-state-functional-mri-as-a-tool-for-evaluating-brain-hemodynamic-responsiveness-to-external-stimuli-in-rats
#4
Jaakko Paasonen, Raimo A Salo, Joanna K Huttunen, Olli Gröhn
PURPOSE: Anesthesia is a major confounding factor in functional MRI (fMRI) experiments attributed to its effects on brain function. Recent evidence suggests that parameters obtained with resting-state fMRI (rs-fMRI) are coupled with anesthetic depth. Therefore, we investigated whether parameters obtained with rs-fMRI, such as functional connectivity (FC), are also directly related to blood-oxygen-level-dependent (BOLD) responses. METHODS: A simple rs-fMRI protocol was implemented in a pharmacological fMRI study to evaluate the coupling between hemodynamic responses and FC under five anesthetics (α-chloralose, isoflurane, medetomidine, thiobutabarbital, and urethane)...
October 23, 2016: Magnetic Resonance in Medicine: Official Journal of the Society of Magnetic Resonance in Medicine
https://www.readbyqxmd.com/read/27765855/molecular-drug-imaging-89zr-bevacizumab-pet-in-children-with-diffuse-intrinsic-pontine-glioma
#5
Marc Jansen, Sophie Em Veldhuijzen van Zanten, Dannis G Van Vuurden, Marc Huisman, Danielle J Vugts, Otto S Hoekstra, Guus A M S van Dongen, Gert-Jan Jl Kaspers
: Predictive tools to guide therapy in children with brain tumors are urgently needed. We introduced molecular imaging to facilitate this. We investigated whether bevacizumab can reach the tumor in children with diffuse intrinsic pontine glioma (DIPG) by measuring the tumor uptake of zirconium-89((89)Zr)-labeled bevacizumab by PET. In addition we evaluated the safety of the procedure in children and determined the optimal timing of imaging. METHODS: Patients received 0...
October 20, 2016: Journal of Nuclear Medicine: Official Publication, Society of Nuclear Medicine
https://www.readbyqxmd.com/read/27760646/-the-efficacy-of-large-spot-indirect-ophthalmoscopy-laser-alone-or-combined-with-systemic-chemotherapy-in-retinoblastoma-therapy
#6
J H Liang, Y Cheng, X Deng, Y Y Yu, X X Li
: Objective: To evaluate the efficacy of large spot indirect ophthalmoscopy laser alone or combined with systemic chemotherapy in the treatment of early and middle stage retinoblastoma. Methods: Retrospective series case study. Clinical data of 21 patients (22 eyes) who were diagnosed as retinoblastoma (RB) in Peking University People's Hospital from March 2009 to August 2014 were collected. Medical and family history, ocular ultrasound, orbital and cranial MRI or CT examination of RB Children were detailed recorded...
October 11, 2016: [Zhonghua Yan Ke za Zhi] Chinese Journal of Ophthalmology
https://www.readbyqxmd.com/read/27725233/technique-of-injection-of-hyaluronic-acid-as-a-prostatic-spacer-and-fiducials-before-hypofractionated-external-beam-radiotherapy-for-prostate-cancer
#7
R Boissier, C Udrescu, X Rebillard, J E Terrier, A Faix, O Chapet, D Azria, M Devonec, P Paparel, A Ruffion
OBJECTIVE: To describe a technique combining the implantation of fiducials and a prostatic spacer (hyaluronic acid (HA)) to decrease the rectal toxicity after an image-guided EBRT with hypofractionation for prostate cancer and to assess the tolerance and the learning curve of the procedure. MATERIAL & METHOD: Thirty patients with prostate cancer at low or intermediate risk were included in a phase II trial: image-guided EBRT of 62Gy in 20 fractions of 3.1Gy with intensity-modulated radiotherapy (IMRT)...
October 7, 2016: Urology
https://www.readbyqxmd.com/read/27702586/physiological-effects-of-a-habituation-procedure-for-functional-mri-in-awake-mice-using-a-cryogenic-radiofrequency-probe
#8
Keitaro Yoshida, Yu Mimura, Ryosuke Ishihara, Hiroshi Nishida, Yuji Komaki, Tomohito Minakuchi, Tomokazu Tsurugizawa, Masaru Mimura, Hideyuki Okano, Kenji F Tanaka, Norio Takata
BACKGROUND: Functional magnetic resonance imaging (fMRI) in mice is typically performed under anesthesia due to difficulties in holding the head of awake mice stably with a conventional three-point fixation method that uses a tooth-bar and earplugs. Although some studies have succeeded in fMRI in awake mice by attaching a head-post on the skull, this cannot be applied to fMRI using a high signal-to-noise ratio (SNR) cryogenic MRI-detector, CryoProbe, because it covers the head of a mouse closely...
December 1, 2016: Journal of Neuroscience Methods
https://www.readbyqxmd.com/read/27692837/central-zone-lesions-on-magnetic-resonance-imaging-should-we-be-concerned
#9
Wei Phin Tan, Andrew Mazzone, Stephanie Shors, Nency Antoine, Shahid Ekbal, Narendra Khare, Charles McKiel, Dennis Pessis, Leslie Deane
INTRODUCTION AND OBJECTIVE: The Prostate Imaging Reporting and Data System (PI-RADS) score was developed to evaluate lesions in the peripheral and transition zone on multiparametric magnetic resonance imaging (mpMRI) of the prostate. We aim to determine if the PI-RADS scoring system can be used to evaluate central zone lesions on mpMRI. MATERIALS AND METHODS: A retrospective review of 73 patients who underwent mpMRI/ultrasound (US) fusion-guided biopsy of 143 suspicious lesions between February 2014 and October 2015 was performed...
September 27, 2016: Urologic Oncology
https://www.readbyqxmd.com/read/27687430/erratum-to-the-hoop-loop-device-increases-anesthesia-and-positioning-safety-in-the-magnetic-resonance-imaging-mri-scanner-journal-of-clinical-anesthesia-2010-22-7-574-5
#10
Zvi Jacob, Rany Makaryus
No abstract text is available yet for this article.
November 2016: Journal of Clinical Anesthesia
https://www.readbyqxmd.com/read/27683261/risk-factors-for-overnight-respiratory-events-following-sedation-for-magnetic-resonance-imaging-in-children-with-sleep-apnea
#11
Margaret J Trost, Melissa Cowell, Jennifer Cannon, Kendra Mitchell, Kevin Waloff, Humberto Avila, Sanjay Chand, Christopher J Russell
PURPOSE: Children with sleep apnea may be at increased risk for overnight respiratory events (ORE) following anesthesia. We sought to identify ORE risk factors in sleep apnea patients sedated for magnetic resonance imaging (MRI). METHODS: One thousand four hundred seven hospitalizations for children with sleep apnea (by ICD-9 code) occurred at our institution from 5/1/2011 to 2/1/2015. One hundred twenty-seven (9 %) encounters were solely for post-MRI observation representing 96 unique patients...
September 28, 2016: Sleep & Breathing, Schlaf & Atmung
https://www.readbyqxmd.com/read/27678106/feasibility-of-ferumoxytol-enhanced-neonatal-and-young-infant-cardiac-mri-without-general-anesthesia
#12
Lillian M Lai, Joseph Y Cheng, Marcus T Alley, Tao Zhang, Michael Lustig, Shreyas S Vasanawala
PURPOSE: To assess the feasibility of ferumoxytol-enhanced anesthesia-free cardiac MRI in neonates and young infants for complex congenital heart disease (CHD). MATERIALS AND METHODS: With Institutional Review Board approval, 21 consecutive neonates and young infants (1 day to 11 weeks old; median age of 3 days) who underwent a rapid two-sequence (MR angiography [MRA] and four-dimensional [4D] flow) MRI protocol with intravenous ferumoxytol without sedation (n = 17) or light sedation (n = 4) at 3 Tesla (T) (except one case at 1...
September 28, 2016: Journal of Magnetic Resonance Imaging: JMRI
https://www.readbyqxmd.com/read/27677041/posterior-intraductal-lombar-tumor%C3%A2-about-a-migration-disc
#13
Samia Frioui Mahmoudi, Emna Toulgui, Sonia Jemni, Khalil Ben Jeddou, Mariem Gaddour, Afif Zaoui, Faycel Khachnaoui
OBJECTIVE: To talk through our observation and a review of the literature about radiological features and diagnostic difficulties of this particular form of disk migration. OBSERVATIONS: We report the case of a 29 year-old patient who presented following the wearing of a heavy load bilateral acute lombosciatalgies associated with a deficit of both lower limbs and urinary incontinence. Clinical examination revealed a motor deficit of sural triceps and foot relievers estimated1 in bilateral, hypoesthesia of the anterolateral side of the two legs and the feet, low bone tendon reflexes were abolished, anesthesia in the saddle, hypotonic anal sphincter and bladder distension...
September 2016: Annals of Physical and Rehabilitation Medicine
https://www.readbyqxmd.com/read/27671150/cervical-lymph-node-metastases-of-squamous-cell-carcinoma-of-unknown-origin-the-diagnostic-value-of-fdg-pet-ct-and-clinical-outcome
#14
Einar Dale, Jon M Moan, Terje A Osnes, Trond V Bogsrud
FDG PET/CT is perceived as a valuable diagnostic tool in addition to the standard diagnostic workup for patients with isolated neck lymph nodes of squamous cell carcinoma of unknown primary (SCCUP). For patients with SCCUP intended for primary radiotherapy, we hypothesize that the previously reported FDG PET/CT detection rates are too high. From 2008 to 2015, 30 SCCUP patients were examined with FDG PET/CT. The objective of the FDG PET/CT examination was twofold: (1) improve the radiotherapy target definition, and (2) identify the primary cancer...
September 26, 2016: European Archives of Oto-rhino-laryngology
https://www.readbyqxmd.com/read/27646518/mri-guided-wire-localization-surgical-biopsy-in-an-adolescent-patient-with-a-difficult-to-diagnose-case-of-lymphoma
#15
Scott M Thompson, Krzysztof R Gorny, Danielle E Jondal, Karen L Rech, Samir Mardini, David A Woodrum
A 17-year-old previously healthy female presented with a progressive soft tissue infiltrative process involving the neck and thorax. Extensive diagnostic evaluation including multiple imaging, laboratory, and biopsy studies was nondiagnostic. Due to an urgent need to establish a diagnosis and several previous nondiagnostic biopsies, she was referred to interventional radiology for MRI-guided wire localization immediately prior to open surgical biopsy. Under general anesthesia, wires were placed in the areas of increased T2 signal within the bilateral splenius capitis muscles using intermittent MRI-guidance followed by immediate surgical biopsy down to the wires...
September 19, 2016: Cardiovascular and Interventional Radiology
https://www.readbyqxmd.com/read/27598547/pythagoras-and-cosines-the-skin-dural-sac-distance-and-optimal-angles-in-paramedian-spinal-anesthesia
#16
Anna Puigdellívol-Sánchez, Miguel A Reina, Xavier Sala-Blanch, Jaume Pomés-Talló, Alberto Prats-Galino
The classical recommendation for paramedian approaches is needle insertion 1-2 cm paramedian and an angle of 10°-15° medial-cephalad to the plane of the back, but contact with vertebrae is frequent. A mathematical approach to individualizing punctures is proposed on the basis of skin-dural sac distance (d): Optimal angle ∼ inverse cosine [d/ √(1+d^2) ] and the distance covered by the needle ∼ √(1+d^2) for 1 cm paramedian punctures. The inferred angles were compared to optimal angles leading to the central dorsal part of the dural sac from 1 to 2 cm paramedian, measured by Magnetic Resonance Imaging (MRI) in seven cases and in a short stature volunteer (1...
November 2016: Clinical Anatomy
https://www.readbyqxmd.com/read/27593248/clinical-pet-mr-imaging-in-dementia-and-neuro-oncology
#17
REVIEW
Otto M Henriksen, Lisbeth Marner, Ian Law
The introduction of hybrid PET/MRI systems allows simultaneous multimodality image acquisition of high technical quality. This technique is well suited for the brain, and particularly in dementia and neuro-oncology. In routine use combinations of well-established MRI sequences and PET tracers provide the most optimal and clinically valuable protocols. For dementia the [18F]-fluorodeoxyglucose (FDG) has merit with a simultaneous four sequence MRI protocol of 20 min supported by supplementary statistical reading tools and quantitative measurements of the hippocampal volume...
October 2016: PET Clinics
https://www.readbyqxmd.com/read/27590642/does-the-utilization-of-allograft-tissue-in-medial-patellofemoral-ligament-reconstruction-in-pediatric-and-adolescent-patients-restore-patellar-stability
#18
Eric Hohn, Nirav K Pandya
BACKGROUND: Medial patellofemoral ligament (MPFL) reconstruction is one of several surgical procedures used to treat patellofemoral instability. Use of allograft tissue can preserve autogenous tissue and may be preferable in patients with connective tissue disorders or ligamentous laxity. Although there are successful reports in adults, it is unclear if the use of allograft tissue in MPFL reconstruction can restore patellofemoral stability in children and adolescents. QUESTIONS/PURPOSES: (1) Does allograft tissue in MPFL reconstruction in pediatric and adolescent patients restore patellar stability? (2) What complications were associated with allograft MPFL reconstructions in children and adolescents? METHODS: Between June 2012 and August 2015, one surgeon (NKP) performed 26 MPFL reconstructions in 23 patients with gracilis allograft for traumatic patellar instability...
September 2, 2016: Clinical Orthopaedics and related Research
https://www.readbyqxmd.com/read/27583049/a-ferromagnetic-foreign-body-at-the-lateral-aspect-of-the-mandibular-ramus-in-a-medically-compromised-patient
#19
K Yamamoto, Y Nakayama, I Yamamoto, Y Matsusue, H Shimotsuji, T Kirita
A case of a ferromagnetic foreign body in a medically compromised patient was reported. The patient was a 45-year-old male who consulted our department complaining of a foreign body accidentally impacted in the right cheek. X-ray examination revealed a foreign body at the lateral aspect of the right mandibular ramus. The removal of the foreign body was scheduled, but the patient did not return for the procedure. After 8 years he revisited our department for the removal of the foreign body, because it had been found to be ferromagnetic and a barrier to MRI examination...
2016: Open Dentistry Journal
https://www.readbyqxmd.com/read/27565634/characteristics-and-quality-of-published-animal-research-in-the-field-of-radiology
#20
Soo Jeong Yoon, Dae Young Yoon, Young Kwon Cho, Sora Baek, Kyoung Ja Lim, Young Lan Seo, Eun Joo Yun
BACKGROUND: Animal research has played an important role in the field of radiology. PURPOSE: To evaluate the characteristics and quality of published radiological animal research. MATERIAL AND METHODS: A PubMed search was performed for radiological animal research articles (defined as studies using animal models with a radiologist as the first author) published in 1994, 2004, and 2014. The following information was extracted from each article: journal name, radiological subspecialty, imaging technique, animal species, number of animals used, number of authors, declared funding, country of origin, methodological quality, and ethical quality...
August 26, 2016: Acta Radiologica
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