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Thoracic imaging

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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/29154999/kinematic-analysis-of-the-space-available-for-cord-and-disc-bulging-of-the-thoracic-spine-using-kinematic-magnetic-resonance-imaging-kmri
#4
Permsak Paholpak, Ishan Shah, Lou-Anne Acevedo-Moreno, Koji Tamai, Jeffrey C Wang, Zorica Buser
BACKGROUND CONTEXT: The thoracic spine was previously known as a relatively stable region in human spine. Several studies reported motion of the thoracic spine and changes in the cross-sectional area of the spinal cord changed with positions in sagittal plane. The kinematic relationship between the thoracic disc and space available for cord with the positional change is still not well investigated. PURPOSE: To evaluate the kinematic change of the intervertebral disc and space available for the spinal cord of the thoracic spine using kMRI...
November 14, 2017: Spine Journal: Official Journal of the North American Spine Society
https://www.readbyqxmd.com/read/29153967/the-role-of-advanced-imaging-in-assessing-response-to-definitive-chemoradiation-before-prophylactic-cranial-irradiation-in-limited-stage-small-cell-lung-cancer
#5
Aparna H Kesarwala, Diana J Lu, Eric Xanthopoulos, Smith Apisarnthanarax, Keith A Cengel, Tracey L Evans, Charu Aggarwal, Roger B Cohen, Corey J Langer, Ramesh Rengan, Charles B Simone
INTRODUCTION: Prophylactic cranial irradiation (PCI) improves survival for small-cell lung cancer (SCLC). Evidence for PCI in limited-stage SCLC largely derives from studies requiring only chest x-ray (CXR) to determine remission status. We analyzed thoracic chemoradiation therapy (TCRT) outcomes according to imaging modality to determine which patients benefitted most from PCI. PATIENTS AND METHODS: All limited-stage SCLC patients who received TCRT as well as PCI at our institution were reviewed...
October 12, 2017: Clinical Lung Cancer
https://www.readbyqxmd.com/read/29150083/ct-imaging-features-of-symptomatic-and-asymptomatic-floating-aortic-thrombus
#6
E Klang, A Kerpel, S Soffer, M Zlotnik, O Shimon, U Rimon, E Konen, M M Amitai
AIM: To present the computed tomography (CT) imaging features of floating aortic thrombus with emphasis on clinical and radiographic predictors for systemic shower emboli. MATERIALS AND METHODS: A retrospective computerised search for patients with protruding thoracic aortic thrombus on CT was conducted. Clinical and demographic characteristics were retrieved from medical files. Patients were divided into two groups: symptomatic and asymptomatic, based on the presence or absence of documented systemic emboli at the time of diagnosis or during follow-up...
November 14, 2017: Clinical Radiology
https://www.readbyqxmd.com/read/29150031/thoracic-surgery-in-the-pregnant-patient
#7
REVIEW
Brian Whang
Thoracic surgeons are sometimes asked to consult on the management of a patient who is pregnant. Conditions commonly encountered are empyema, spontaneous pneumothorax, and diaphragmatic hernia. Lung cancer is rarely seen in pregnancy, but its incidence is rising. Diagnostic imaging and perioperative management involve the navigation of fetal risks and nuances in maternal physiology. Shared decision making within a multidisciplinary framework will optimally guide the course of management.
February 2018: Thoracic Surgery Clinics
https://www.readbyqxmd.com/read/29149260/an-aorto-oesophageal-fistula-caused-by-a-fish-bone-resulting-in-an-accidental-discovery-of-an-invasive-adenocarcinoma-in-the-lung
#8
Bao Long Zhang, Ji Ning Sun, Na Na Liu, Fu Zhi Cao
An aorto-oesophageal fistula is a rare, life-threatening complication caused by sharp foreign bodies in the oesophagus. We report an aorto-oesophageal fistula in the inferior segment of thoracic oesophagus caused by a fish bone. Multiplanar reconstruction of computed tomography and computed tomography angiography demonstrated that a foreign body had pierced from the left posterior wall of the oesophagus into the descending aortic wall. These computed tomography images can help radiologists make the correct diagnosis and provide precise evidence for clinicians to perform a timely surgical intervention...
November 15, 2017: Interactive Cardiovascular and Thoracic Surgery
https://www.readbyqxmd.com/read/29148922/feasibility-and-safety-of-using-thoracic-and-lumbar-cortical-bone-trajectory-pedicle-screws-in-spinal-constructs-in-children-technical-note
#9
Jonathan N Sellin, Jeffrey S Raskin, Kristen A Staggers, Alison Brayton, Valentina Briceño, Amee J Moreno, Andrew Jea
Thoracic and lumbar cortical bone trajectory pedicle screws have been described in adult spine surgery. They have likewise been described in pediatric CT-based morphometric studies; however, clinical experience in the pediatric age group is limited. The authors here describe the use of cortical bone trajectory pedicle screws in posterior instrumented spinal fusions from the upper thoracic to the lumbar spine in 12 children. This dedicated study represents the initial use of cortical screws in pediatric spine surgery...
November 17, 2017: Journal of Neurosurgery. Pediatrics
https://www.readbyqxmd.com/read/29145324/a-rare-case-of-merkel-cell-carcinoma-presenting-as-a-giant-intra-thoracic-mass-a-case-report-and-review-of-the-literature
#10
Feng-Wei Kong, Miao Zhang, Heng Wang, Cun-Tao Lu, Wen-Bin Wu, Yuan-Yuan Liu
RATIONALE: Merkel cell carcinoma (MCC) is an aggressive neuroendocrine-derived cutaneous cancer. Ectopic or single metastatic MCC located in thorax is extremely rare; meanwhile, its definite management has not been elucidated yet. PATIENT CONCERNS: A 64-year-old female patient with a giant mass located in her left thorax was presented for stuffy pain of left chest for 6 months and fever for half a month. She underwent radical resection of vulvar MCC 10 years ago...
November 2017: Medicine (Baltimore)
https://www.readbyqxmd.com/read/29143683/the-progression-of-heartworm-associated-respiratory-disease-hard-in-spf-cats-18%C3%A2-months-after-dirofilaria-immitis-infection
#11
A Ray Dillon, Bryon L Blagburn, Michael Tillson, William Brawner, Betsy Welles, Calvin Johnson, Russell Cattley, Pat Rynders, Sharron Barney
BACKGROUND: Heartworm-associated respiratory disease (HARD) in cats is induced by the arrival and death of immature adult Dirofilaria immitis in the pulmonary system and is indistinguishable from mature adult heartworm infection. METHODS: A controlled, blind research study investigated the long-term (18 months post infection, PI) consequences of the inflammatory response associated with the death of immature adult heartworms in cats. Three groups of cats, 10 per group, were infected with 100 third-stage (L3) larvae by subcutaneous injection...
November 9, 2017: Parasites & Vectors
https://www.readbyqxmd.com/read/29143661/heartworm-associated-respiratory-disease-hard-induced-by-immature-adult-dirofilaria-immitis-in-cats
#12
A Ray Dillon, Byron L Blagburn, Michael Tillson, William Brawner, Betsy Welles, Calvin Johnson, Russell Cattley, Pat Rynders, Sharron Barney
BACKGROUND: A controlled, blind research study was conducted to define the initial inflammatory response and lung damage associated with the death of immature adult Dirofilaria immitis in cats as compared with cats developing adult heartworm infections and cats on preventive medication. METHODS: Three groups of cats were utilized, 10 per group. All cats were infected with 100 third-stage (L3) larvae by subcutaneous injection. Group A cats were treated topically with selamectin (Revolution®; Zoetis) per label directions at 28 days post infection (PI) and once monthly for 8 months...
November 9, 2017: Parasites & Vectors
https://www.readbyqxmd.com/read/29142817/an-unusual-case-of-aortic-right-atrium-fistula-a-diagnostic-and-therapeutic-challenge
#13
Maria Chiara Todaro, Alessandro Aprile, Adriana Ravera, Gaetano Senatore
An aorta-to-right atrium (RA) fistula is an anomalous communication between the ascending or descending thoracic aorta and the RA. In this report, we describe a case of an idiopathic aortic root-to-RA fistula occasionally found during a coronary angiography performed in a young patient admitted for acute chest pain with evidence of multivessel coronary artery disease. The anatomical peculiarity of this fistulous communication is that it gave origin to collateral vessels furnishing the inferolateral wall of the left ventricle...
October 2017: Journal of Cardiovascular Echography
https://www.readbyqxmd.com/read/29142793/a-ruptured-extra-dural-spinal-arterio-venous-malformation-presenting-as-horner-s-syndrome-the-first-case-report
#14
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
#15
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/29134518/erector-spinae-plane-block-for-the-management-of-chronic-shoulder-pain-a-case-report
#16
Mauricio Forero, Manikandan Rajarathinam, Sanjib Das Adhikary, Ki Jinn Chin
PURPOSE: The erector spinae plane (ESP) block has been described in the successful management of both thoracic and abdominal pain. Since the erector spinae muscle extends to the cervical spine, the ESP block may be potentially useful in painful conditions of the shoulder girdle. CLINICAL FEATURES: We performed a series of ESP blocks at the T2/T3 level in an elderly male patient with chronic shoulder pain. Immediate and profound analgesia with improved range of motion was consistently observed following the block...
November 13, 2017: Canadian Journal of Anaesthesia, Journal Canadien D'anesthésie
https://www.readbyqxmd.com/read/29134291/local-distribution-of-collagen-fibers-determines-crack-initiation-site-and-its-propagation-direction-during-aortic-rupture
#17
Shukei Sugita, Takeo Matsumoto
Although elucidation of the mechanism of aortic aneurysm rupture is important, the characteristics of crack initiation and propagation sites remain unknown. To determine the microscopic properties of these sites, the characteristics of local strains and constituents at crack initiation and propagation sites were investigated during biaxial stretching of porcine thoracic aortas (PTAs). PTAs were sliced into approximately 50-[Formula: see text]-thick sections, and the center of the sections was made especially thin using our previously developed technique...
November 13, 2017: Biomechanics and Modeling in Mechanobiology
https://www.readbyqxmd.com/read/29133226/the-effect-of-dietary-neonicotinoid-pesticides-on-non-flight-thermogenesis-in-worker-bumble-bees-bombus-terrestris
#18
Robert Potts, Rebecca M Clarke, Sophie E Oldfield, Lisa K Wood, Natalie Hempel de Ibarra, James E Cresswell
For bumble bees (genus Bombus), the capacity for non-flight thermogenesis is essential for two fundamental processes undertaken by adult workers, namely recovery from torpor after chilling and brood incubation. Farmland bees can be widely exposed to dietary residues of neurotoxic neonicotinoid insecticides that appear in the nectar and pollen of treated bee-attractive crops, which may harm them. An earlier study shows that dietary neonicotinoids cause complex alterations to thermoregulation in honey bees, but their effects on the thermogenic capabilities of individual bumble bees has been untested previously...
November 10, 2017: Journal of Insect Physiology
https://www.readbyqxmd.com/read/29133002/clinical-characteristics-of-lumbosacral-spinal-dural-arteriovenous-fistula-davf-comparison-to-thoracic-davf
#19
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/29132573/critical-decisions-in-the-management-of-thoracic-trauma
#20
REVIEW
Morgan Schellenberg, Kenji Inaba
Traumatic injuries to the thorax are common after both blunt and penetrating trauma. Emergency medicine physicians must be able to manage the initial resuscitation and diagnostic workup of these patients. This involves familiarity with a range of radiologic investigations and invasive bedside procedures, including resuscitative thoracotomy. This knowledge is critical to allow for rapid decision making when life-threatening injuries are encountered. This article explores the initial resuscitation and assessment of patients after thoracic trauma, discusses available imaging modalities, reviews frequently performed procedures, and provides an overview of the indications for operative intervention, while emphasizing the critical decision making throughout...
February 2018: Emergency Medicine Clinics of North America
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