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https://www.readbyqxmd.com/read/29158471/thoracic-epidural-hematoma-complicating-vertebroplasty
#1
Cumhur Kaan Yaltırık, Selçuk Özdoğan, Başar Atalay
BACKGROUND Percutaneous vertebroplasty procedures are commonly used to treat vertebral fractures. These techniques may be associated with major complications. CASE REPORT We present here a case of a 64-year-old female patient with T9 and T10 acute osteoporotic fractures, treated previously with vertebroplasty for four levels of osteoporotic vertebral fractures. The patient was treated by T9-T10 vertebroplasty. The post-operative neurological examination was normal. Two hours later, she progressively worsened and developed paraplegia...
November 21, 2017: American Journal of Case Reports
https://www.readbyqxmd.com/read/29157746/particle-filter-based-target-tracking-algorithm-for-magnetic-resonance-guided-respiratory-compensation-robustness-and-accuracy-assessment
#2
Alexandra E Bourque, Stéphane Bedwani, Jean-François Carrier, Cynthia Ménard, Pim Borman, Clemens Bos, Bas W Raaymakers, Nikolai Mickevicius, Eric Paulson, Rob H N Tijssen
PURPOSE: To assess overall robustness and accuracy of a modified particle filter-based tracking algorithm for magnetic resonance (MR)-guided radiation therapy treatments. METHODS AND MATERIALS: An improved particle filter-based tracking algorithm was implemented, which used a normalized cross-correlation function as the likelihood calculation. With a total of 5 healthy volunteers and 8 patients, the robustness of the algorithm was tested on 24 dynamic magnetic resonance imaging (MRI) time series with varying resolution, contrast, and signal-to-noise ratio...
October 12, 2017: International Journal of Radiation Oncology, Biology, Physics
https://www.readbyqxmd.com/read/29157382/diagnostic-imaging-and-newer-modalities-for-thoracic-diseases-pet-computed-tomographic-imaging-and-endobronchial-ultrasound-for-staging-and-its-implication-for-lung-cancer
#3
REVIEW
Sarah J Counts, Anthony W Kim
Modalities to detect and characterize lung cancer are generally divided into those that are invasive [endobronchial ultrasound (EBUS), esophageal ultrasound (EUS), and electromagnetic navigational bronchoscopy (ENMB)] versus noninvasive [chest radiography (CXR), computed tomography (CT), positron emission tomography (PET), and magnetic resonance imaging (MRI)]. This chapter describes these modalities, the literature supporting their use, and delineates what tests to use to best evaluate the patient with lung cancer...
January 2018: PET Clinics
https://www.readbyqxmd.com/read/29142793/a-ruptured-extra-dural-spinal-arterio-venous-malformation-presenting-as-horner-s-syndrome-the-first-case-report
#4
Sunil Munakomi
We report the first case of a young patient who presented with the features of Horner's syndrome following a spinal extradural hematoma resulting from a ruptured arterio-venous malformation (AVM). Since there were features of early compressive myelopathy as well, urgent magnetic resonance imaging (MRI) scan of the spine revealed features suggestive of an extradural hematoma in the cervico-thoracic junction. The patient underwent an emergent laminectomy with an evacuation of the hematoma. The histological features were consistent with that of an AVM...
September 3, 2017: Curēus
https://www.readbyqxmd.com/read/29137102/lateral-medullary-infarction-with-similar-features-of-brown-sequard-syndrome-caused-by-vertebrobasilar-dysplasia-and-klippel-feil-syndrome-a-case-report
#5
Jingzhe Han, Duanhua Cao, Guomei Ma, Tingting Wang, Ye Ji, Zhilei Kang
RATIONALE: Patients with Klippel-Feil syndrome (KFS) are always anomaly associated with vertebrobasilar dysplasia. That may present commonly as infarction of brainstem, medulla, and cerebellum. In this article, we reported a rare case of lateral medullary infarction (LMI) with similar features of Brown Sequard syndrome caused by vertebrobasilar dysplasia and KFS, and the 2 rare conditions that are causally related. The case is being reported because of its unusual and rare presentation...
November 2017: Medicine (Baltimore)
https://www.readbyqxmd.com/read/29133002/clinical-characteristics-of-lumbosacral-spinal-dural-arteriovenous-fistula-davf-comparison-to-thoracic-davf
#6
Toshiki Endo, Takumi Kajitani, Tomoo Inoue, Kenichi Sato, Kuniyasu Niizuma, Hidenori Endo, Yasushi Matsumoto, Teiji Tominaga
OBJECTIVE: Spinal dural arteriovenous fistula (DAVF) occurs at any spinal level but the clinical characteristics of lumbosacral DAVF have not been well documented. Purpose of this study was to evaluate clinical characteristics of lumbosacral DAVF and compare these features to those in thoracic DAVF. METHODS: Twenty-five consecutive patients with 16 thoracic and 9 lumbosacral DAVF were included (mean age, 63.9 years; twenty men). All patients presented with progressive myelopathy...
November 10, 2017: World Neurosurgery
https://www.readbyqxmd.com/read/29130572/ischemic-optic-neuropathy-in-a-dog-with-acute-bilateral-blindness-and-primary-systemic-hypertension
#7
L Mari, R Stavinohova, E Dominguez, J Premont, J Oliver, L De Risio
A 6-year-old neutered female Jack Russell terrier was investigated for sudden onset prechiasmatic bilateral blindness, left circling, reduced proprioception in the right pelvic limb and right facial allodynia. Electroretinography was normal. Magnetic resonance imaging (MRI) examination revealed that the right optic nerve and the optic chiasm were hyperintense on diffusion weighted imaging and hypointense on apparent diffusion coefficient map consistent with ischemic optic neuropathy. A concurrent lacunar infarct was detected in the left rostral colliculus...
November 12, 2017: Journal of Veterinary Internal Medicine
https://www.readbyqxmd.com/read/29129004/multiple-hereditary-osteochondromatosis-with-spinal-cord-compression-case-report
#8
Oscar García-González, J Nicolás Mireles-Cano, Natalia Sánchez-Zavala, Miguel A Chagolla-Santillan, Segio M Orozco-Ramirez, Pedro Silva-Cerecedo, Mario Murguia-Perez, Fernando Rueda-Franco
OBJECTIVE: The purpose of the report is to describe a patient with hereditary osteochondromatosis and spinal cord compression at the thoracic level. CLINICAL FEATURES: An 8-year-old patient with hereditary osteochondromatosis inherited from his father presented paraparesis in the left foot, leading to complete paralysis in both legs. INTERVENTION: In a CT scan, a bony tumor rising from the posterior wall of the T3 body narrowing the spinal canal, and the MRI spinal cord compression at the same level and the hydrosyringomyelic cavity extended to the conus medullaris; with an anterior thoracic approach to T2-T4, the fibro-cartilaginous tumor was removed, and the stabilization was completed with bone graft and a plate...
November 11, 2017: Child's Nervous System: ChNS: Official Journal of the International Society for Pediatric Neurosurgery
https://www.readbyqxmd.com/read/29127878/absence-of-the-subclavius-muscle-with-contralateral-subclavius-posticus-muscle-first-imaging-report
#9
Yun Sam, Sekyoung Park, Chang Su Kim
We present a case of a 56-year-old man with pain in in his right anterior shoulder, arm, and hand. MRI studies demonstrated absence of the subclavius muscle with contralateral subclavius posticus muscle. To our knowledge, imaging of the total absence of subclavius muscle has not been previously described. Understanding and recognition of subclavius posticus muscle are important for its potential role in thoracic outlet syndrome.
October 16, 2017: Clinical Imaging
https://www.readbyqxmd.com/read/29125923/prophylactic-cranial-irradiation-for-extensive-small-cell-lung-cancer
#10
Steven E Schild, Terence T Sio, Thomas B Daniels, Stephen G Chun, Dirk Rades
Small-cell lung cancer (SCLC) has a high predilection for metastasizing to the brain after chemotherapy. This has been blamed on the blood-brain barrier, which prevents chemotherapy from penetrating into the brain, thus creating a sanctuary site. It has been estimated that up to three quarters of patients with SCLC will eventually develop brain metastases. This led investigators to administer prophylactic cranial irradiation (PCI) to decrease this risk. Several trials were performed in patients with SCLC after initial therapy (chemotherapy with or without thoracic radiotherapy) that compared the outcomes of PCI versus no PCI...
November 2017: Journal of Oncology Practice
https://www.readbyqxmd.com/read/29123008/reproducibility-of-mr-based-attenuation-maps-in-pet-mri-and-the-impact-on-pet-quantification-in-lung-cancer
#11
Anders Olin, Claes N Ladefoged, Natasha H Langer, Sune H Keller, Johan O Löfgren, Adam E Hansen, Andreas Kjær, Seppo W Langer, Barbara M Fischer, Flemming L Andersen
AIM: Quantitative positron emission tomography/magnetic resonance imaging (PET/MRI) is dependent upon reliable and reproducible MR-based attenuation correction (MR-AC). In this study we evaluated the quality of current vendor-provided thoracic MR-AC maps, and further investigated the reproducibility of these in terms of their impact on fluorodeoxyglucose (FDG)-PET quantification in patients with non-small cell lung cancer (NSCLC). MATERIAL AND METHODS: Eleven patients with inoperable NSCLC underwent two to five thoracic PET/MRI scan-rescan examinations within 22 days...
November 9, 2017: Journal of Nuclear Medicine: Official Publication, Society of Nuclear Medicine
https://www.readbyqxmd.com/read/29119033/the-utility-of-mri-in-the-diagnosis-of-takayasu-arteritis
#12
Marian Gaballah, Rachelle Goldfisher, John B Amodio
Takayasu Arteritis (TA) is an inflammatory disorder involving the thoracoabdominal aorta and its branches and the pulmonary arteries, with eventual vascular stenosis, occlusion, or aneurysm formation. Conventional angiography has been the reference imaging standard for diagnosis of TA. The purpose of this case report is to demonstrate the utility of MR imaging and MR angiography in the diagnosis of Takayasu Arteritis in a pediatric patient. The patient is a 15-year-old female patient presenting with anemia, hypertension, and acute kidney injury...
2017: Case Reports in Pediatrics
https://www.readbyqxmd.com/read/29115099/spinal-meningiomas-61-cases-with-predictors-of-early-postoperative-surgical-outcomes
#13
Ahmed B Bayoumi, Yosef Laviv, Ceren N Karaali, Kemal Ertilav, Umit Kepoglu, Zafer O Toktas, Deniz Konya, Ekkehard M Kasper
BACKGROUND: Spinal meningiomas are benign, well-circumscribed and slowly growing intradural tumors that compress the spinal cord. Hereby, a retrospective review of 61 spinal meningioma cases evaluated in terms of demographic, clinical, pathological and radiological features to predict the early postoperative functional outcomes. METHODS: Patients' records and MRI images of all the histologically confirmed spinal meningioma cases that underwent surgical resection at two university hospitals from January 2005 to June 2016 were retrospectively reviewed...
November 7, 2017: Journal of Neurosurgical Sciences
https://www.readbyqxmd.com/read/29109886/radiofrequency-targeted-vertebral-augmentation-case-report-of-a-patient-with-7-osteoporotic-vertebral-fractures-in-a-variant-of-osteogenesis-imperfecta
#14
Leonard Westermann, Peer Eysel, Marvin Simons, Kourosh Zarghooni
Introduction: Radiofrequency-targeted vertebral augmentation (RF-TVA) is a recognized treatment for painful compression fractures. RF-TVA in a patient with multiple compression fractures due to type I osteogenesis imperfecta (OI) has not been previously reported. Case Presentation: A 54-year-old patient with type I OI is presented with a segmental thoracic hyperkyphosis and 7 recent vertebral compression fractures. Because of persistent severe thoracolumbar back pain despite conservative therapy, RF-TVA was indicated...
2017: Case Reports in Orthopedics
https://www.readbyqxmd.com/read/29106657/posterior-upper-rib-excision-for-neurogenic-thoracic-outlet-syndrome-feasibility-and-early-outcomes
#15
Kamran Aghayev, Ozcan Ciklatekerlio
BACKGROUND: There are several surgical treatment options for neurogenic thoracic outlet syndrome (n-TOS). However, the first rib has been shown to be the common denominator of all TOS forms and the degree of its resection has been shown to correlate with the long-term success. OBJECTIVE: To demonstrate the feasibility of posterior upper rib excision (PURE) and report early outcomes. METHODS: Nine patients presented with signs and symptoms of n-TOS...
July 6, 2017: Operative Neurosurgery (Hagerstown, Md.)
https://www.readbyqxmd.com/read/29104839/thoracic-spinal-cord-glioblastoma-mimicking-epidural-abscess-case-report-and-literature-review
#16
Rudy Marciano, Zubair Ahammad, Victor Awuor
Spinal cord glioblastoma (SG) accounts for 1.5% of all spinal tumors and has a poor prognosis with survival ranging from 2 to 26 months from presentation. A 57-year-old male presented with one week of paraparesis and contrasted magnetic resonance imaging (MRI) findings of an epidural enhancing thoracic mass suspicious for an epidural abscess. Intraoperative and pathologic findings revealed SG. Spinal cord tumors can mimic epidural abscess on MRI. When planning to address extradural spinal pathologies, one should be cognizant of the potential for either isolated or concurrent intradural pathologies...
August 31, 2017: Curēus
https://www.readbyqxmd.com/read/29103481/comparison-between-multi-shot-gradient-echo-epi-and-balanced-ssfp-in-unenhanced-3t-mra-of-thoracic-aorta-in-healthy-volunteers
#17
Yuji Iyama, Takeshi Nakaura, Yasunori Nagayama, Seitaro Oda, Daisuke Utsunomiya, Masafumi Kidoh, Hideaki Yuki, Kenichiro Hirata, Tomohiro Namimoto, Mika Kitajima, Kosuke Morita, Yoshinori Funama, Atsushi Takemura, Shinichi Tokuyasu, Tomoyuki Okuaki, Yasuyuki Yamashita
PURPOSE: The purpose of this study was to compare scan time and image quality between magnetic resonance angiography (MRA) of the thoracic aorta using a multi-shot gradient echo planar imaging (MSG-EPI) and MRA using balanced steady-state free precession (b-SSFP). MATERIALS AND METHODS: Healthy volunteers (n=17) underwent unenhanced thoracic aorta MRA using balanced steady-state free precession (b-SSFP) and MSG-EPI sequences on a 3T MRI. The acquisition time, total scan time, signal-to-noise ratio (SNR) of the thoracic aorta, and the coefficient of variation (CV) of thoracic aorta were compared with paired t-tests...
November 2017: European Journal of Radiology
https://www.readbyqxmd.com/read/29101074/regression-of-giant-calcified-thoracic-disc-and-spinal-cord-compression-following-thoracic-laminectomy-and-posterior-instrumented-fusion
#18
Fernando Alonso, Manish K Kasliwal
A 55 year old full time employed lady presented with urinary urgency and occasional lower extremity numbness and tingling with motor function preservation. CT and MRI revealed a 20mm x 9mm T10-T11 calcified disc (Figure A, B, C). Anterior and posterior approaches were discussed with the patient along with associated risks such as CSF leak due to possible intradural extension and small but possible risk of new onset motor deficit following disc removal. Considering her almost intact neurological function and to avoid slight albeit realistic morbidity from attempted discectomy regardless of an anterior transthoracic or posterolateral approach, a strategy consisting of a wide long segment T10-T11 laminectomy and T9-T12 posterior instrumented fusion was performed with the assumption that micro motion elimination through a fusion will eliminate dynamic compression from spinal cord draping over the anterior calcified disc fragment...
October 31, 2017: World Neurosurgery
https://www.readbyqxmd.com/read/29097955/thoracic-schwannoma-in-an-adult-male-presenting-with-thoracic-pain-a-case-report
#19
Andrew M Rodgers, Kim B Khauv
Objective: The purpose of this case report was to describe a patient presenting with back pain subsequently diagnosed with thoracic schwannoma. Clinical Features: A 45-year-old male presented to a chiropractic practice with mid-back, low back, and sacroiliac pain. Orthopedic examination revealed joint dysfunction in the thoracic-sacroiliac region with normal findings on neurologic examination. An initial diagnosis of thoracic spinal pain and sacroiliac sprain and strain was made...
September 2017: Journal of Chiropractic Medicine
https://www.readbyqxmd.com/read/29095302/spontaneous-spinal-epidural-hematomas-one-case-report-and-rehabilitation-outcome
#20
Hang Xian, Li-Wei Xu, Cong-Han Li, Jian-Ming Hao, Wei-Xia Wan, Guo-Dong Feng, Ke-Jian Lian, Lin Li
RATIONALE: Spontaneous spinal epidural hematoma (SSEH) is a relatively rare but potentially disabling disease, and the classical presentation of it includes an acute onset of severe, sometimes radiating back or neck pain, followed by signs and symptoms of rapidly evolving nerve root or spinal cord compression. PATIENT CONCERNS: Here, we report a 26-year-old female patient presented with weakness in bilateral lower extremities, progressing to intense paraplegia and anesthesia without recent medical history of trauma, infection, surgery, or drug use...
November 2017: Medicine (Baltimore)
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