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https://www.readbyqxmd.com/read/28101170/extramedullary-hematopoiesis-a-report-of-two-cases
#1
Huan-Zhu Zhang, Ying Li, Xin Liu, Bao-Rong Chen, Guo-Hua Yao, Yu-Na Peng
Extramedullary hematopoiesis (EMH) is defined as hematopoiesis occurring in organs outside of the bone marrow. The present report describes two cases of thalassemic patients with paraspinal medullary hematopoiesis and analyzes the clinical manifestations, imaging, pathology, diagnosis and treatment of EMH. In addition, a supplementary review of previously published cases is provided along with a review of the related literature. Computed tomography (CT) of the first case revealed multiple paraspinal masses, and the largest was 6...
December 2016: Experimental and Therapeutic Medicine
https://www.readbyqxmd.com/read/28100704/frequency-of-abnormal-pulmonary-computed-tomography-findings-in-asylum-seeking-refugees-in-turkey
#2
Levent Soydan, Ali Aslan Demir, Atadan Tunaci
BACKGROUND: Lungs are particularly vulnerable to both acute infections, including TB, and chronic diseases such as chronic obstructive pulmonary disease, as well as to malignancies, all of which require particular attention during war times in which health conditions are far from optimal. METHODS: This retrospective cross-sectional study included 1149 refugees that underwent thoracic computed tomography (CT) for respiratory symptoms between March 2013 and February 2015 in Turkey...
January 18, 2017: International Health
https://www.readbyqxmd.com/read/28095493/thoracic-temporal-subtraction-three-dimensional-computed-tomography-3d-ct-screening-for-vertebral-metastases-of-primary-lung-cancers
#3
Shingo Iwano, Rintaro Ito, Hiroyasu Umakoshi, Takatoshi Karino, Tsutomu Inoue, Yuanzhong Li, Shinji Naganawa
PURPOSE: We developed an original, computer-aided diagnosis (CAD) software that subtracts the initial thoracic vertebral three-dimensional computed tomography (3D-CT) image from the follow-up 3D-CT image. The aim of this study was to investigate the efficacy of this CAD software during screening for vertebral metastases on follow-up CT images of primary lung cancer patients. MATERIALS AND METHODS: The interpretation experiment included 30 sets of follow-up CT scans in primary lung cancer patients and was performed by two readers (readers A and B), who each had 2...
2017: PloS One
https://www.readbyqxmd.com/read/28095343/patient-tailored-management-of-an-asymptomatic-massive-substernal-goiter-presenting-as-brachiocephalic-vein-occlusion-report-of-a-case-and-review-of-sternotomy-indications
#4
Georgios Sahsamanis, Eleftherios Chouliaras, Konstantinos Katis, Stavros Samaras, Stavros Daliakopoulos, Georgios Dimitrakopoulos
INTRODUCTION: Substernal goiters are characterized by the protrusion of at least 50% of the thyroid mass below the level of the thoracic inlet. Still their definition is controversial. CASE PRESENTATION: The case refers to a 44year old male who presented to our department due to swelling and a feeling of 'heaviness' of his left upper extremity for the past 6 months. CT scan revealed a massive substernal goiter extending to the great vessels. Intraoperatively, a median sternotomy was performed due to the size of the gland and the close adhesion of the isthmus and lower left thyroid lobe to the brachiocephalic vein...
January 4, 2017: International Journal of Surgery Case Reports
https://www.readbyqxmd.com/read/28094413/electrical-impedance-tomography-for-lung-ventilation-monitoring-of-the-dog
#5
Simon Gloning, Korbinian Pieper, Martin Zoellner, Andrea Meyer-Lindenberg
BACKGROUND: Electrical impedance tomography (EIT) is a radiation free technique which takes advantage of the different electrical conductivities of different tissues. Its main field of application is lung ventilation monitoring. The aim of this prospective study was to evaluate the feasibility of collecting EIT information on a sample of dogs with different thoracic shapes under clinical conditions by connecting an electrode belt without fur clipping. MATERIAL AND METHODS: Fifteen pulmonary healthy dogs were anaesthetized, positioned in sternal recumbency and ventilated in a pressure-controlled mode at three different positive end-expiratory pressure levels (PEEP) of 0, 5 and 10 cmH2O for five breaths each, with a peak inspiratory pressure of 15 cmH2O...
January 17, 2017: Tierärztliche Praxis. Ausgabe K, Kleintiere/Heimtiere
https://www.readbyqxmd.com/read/28092341/unilateral-spinous-process-non-covering-hook-type-patient-specific-drill-template-for-thoracic-pedicle-screw-fixation-a-pilot-clinical-trial-and-template-classification
#6
Sang Bum Kim, Yougun Won, Hyun Jin Yoo, Lee Jae Sin, John M Rhee, Sang Wook Lee, Gi-Soo Lee
STUDY DESIGN: Prospective Clinical Pilot tudy OBJECTIVE.: To confirm the accuracy of thoracic pedicle screw placement by using the unilateral spinous non-covering hook type patient-specific drill template (PSDT) made through rapid prototyping (RP) and to analyze previously reported PSDT designs and their characteristics. SUMMARY OF BACKGROUND DATA: Pedicle screw fixation is the most common form of the posterior instrumentation of the thoracic and lumbar spine. Various techniques have been introduced to improve pedicle screw placement...
January 13, 2017: Spine
https://www.readbyqxmd.com/read/28081050/white-paper-of-the-society-of-computed-body-tomography-and-magnetic-resonance-on-dual-energy-ct-part-3-vascular-cardiac-pulmonary-and-musculoskeletal-applications
#7
Carlo N De Cecco, U Joseph Schoepf, Lynne Steinbach, Daniel T Boll, W Dennis Foley, Ravi K Kaza, David N Bolus, Desiree E Morgan, Dushyant V Sahani, William P Shuman, Marilyn J Siegel, Terri J Vrtiska, Benjamin M Yeh, Lincoln L Berland
This is the third of a series of 4 white papers that represent Expert Consensus Documents developed by the Society of Computed Body Tomography and Magnetic Resonance through its Task Force on dual-energy computed tomography. This paper, part 3, describes computed tomography angiography and thoracic, cardiac, vascular, and musculoskeletal clinical applications. At the end of the discussion of each application category (vascular, cardiac, pulmonary, and musculoskeletal), we present our consensus opinions on the current clinical utility of the application and opportunities for further research...
January 2017: Journal of Computer Assisted Tomography
https://www.readbyqxmd.com/read/28079832/usefulness-of-low-dose-chest-ct-for-initial-evaluation-of-blunt-chest-trauma
#8
Sung Jung Kim, Anjali Basnyat Bista, Young Gi Min, Eun Young Kim, Kyung Joo Park, Doo Kyoung Kang, Joo Sung Sun
We aimed to compare the diagnostic performance and inter-observer consistency between low dose chest CT (LDCT) and standard dose chest CT (SDCT) in the patients with blunt chest trauma.A total of 69 patients who met criteria indicative of blunt chest trauma (77% of male; age range, 16-85) were enrolled. All patients underwent LDCT without intravenous (IV) contrast and SDCT with IV contrast using parameters as following: LDCT, 40 mAs with automatic tube current modulation (ATCM) and 100 kVp (BMI <25, n = 51) or 120 kVp (BMI>25, n = 18); SDCT, 180 mAs with ATCM and 120 kVp...
January 2017: Medicine (Baltimore)
https://www.readbyqxmd.com/read/28078376/ipsilateral-dual-site-same-sitting-percutaneous-lung-biopsy-a-feasibility-study
#9
Joseph Barnett, Aniket N Tavare, Sajid Khan, Ashish Saini, Dean D Creer, Samanjit S Hare
PURPOSE: Patients with thoracic malignancies often have more than one site of pulmonary, nodal or pleural disease within one hemithorax. In addition, large heterogeneous lesions may comprise distinct, mixed pathological entities. Histological analysis of these lesions can alter tumour staging and treatment options. We investigated the feasibility, safety and benefit of performing image-guided percutaneous lung biopsy (PLB) of two lesions in the same hemithorax at a single sitting. MATERIALS AND METHODS: Ten consecutive outpatients with two or more potential disease foci within the same hemithorax were analysed over a 15-month period...
January 11, 2017: Cardiovascular and Interventional Radiology
https://www.readbyqxmd.com/read/28074445/intrathoracic-tumor-of-the-chest-wall-a-case-of-castleman-s-disease-mimicking-myositis-of-the-lower-extremities
#10
Athanasios Tampakis, Ekaterini Christina Tampaki, Thomas Daikeler, Didier Lardinois
Castleman's disease refers to a group of uncommon lymphoproliferative disorders which exhibit common lymph-node histological features. A 72-year-old male patient presented with signs of lower limb myositis. Detailed work-up focused initially on evaluating hematological malignancies, the presence of a solid tumor, autoimmune diseases and degenerative disorders of the peripheral nerves. Finally, a PET-CT scan was performed to exclude paraneoplastic manifestations of a primary tumor, revealing  however a tumor of the thoracic wall...
January 10, 2017: General Thoracic and Cardiovascular Surgery
https://www.readbyqxmd.com/read/28067202/pulmonary-fibrosis-tissue-characterization-using-late-enhanced-mri-compared-with-unenhanced-anatomic-high-resolution-ct
#11
Lisa P Lavelle, Darragh Brady, Sinead McEvoy, David Murphy, Brian Gibney, Annika Gallagher, Marcus Butler, Fionnula Shortt, Marie McMullen, Aurelie Fabre, David A Lynch, Michael P Keane, Jonathan D Dodd
PURPOSE: We aimed to prospectively evaluate anatomic chest computed tomography (CT) with tissue characterization late gadolinium-enhanced magnetic resonance imaging (MRI) in the evaluation of pulmonary fibrosis (PF). METHODS: Twenty patients with idiopathic pulmonary fibrosis (IPF) and twelve control patients underwent late-enhanced MRI and high-resolution CT. Tissue characterization of PF was depicted using a segmented inversion-recovery turbo low-angle shot MRI sequence...
January 9, 2017: Diagnostic and Interventional Radiology: Official Journal of the Turkish Society of Radiology
https://www.readbyqxmd.com/read/28066679/image-guided-techniques-for-localizing-pulmonary-nodules-in-thoracoscopic-surgery
#12
REVIEW
Mong-Wei Lin, Jin-Shing Chen
Low-dose computed tomography (LDCT) screening has increased the detection rate for small pulmonary nodules with ground-glass opacity (GGO) in the peripheral lung parenchyma. Minimally invasive thoracoscopic surgery for these lung nodules is challenging for thoracic surgeons, and image-guided preoperative localization is mandatory for their successful resection. Image-guided localization methods primarily include two imaging tools: computed tomography (CT) and bronchoscopy. These different methods may use different localized materials, including hookwires, dyes, microcoils, fiducial markers, contrast media, and radiotracers...
October 2016: Journal of Thoracic Disease
https://www.readbyqxmd.com/read/28066669/agar-blue-localization-of-small-pulmonary-nodules-and-ground-glass-opacifications-for-thoracoscopic-resection
#13
Ara S Klijian
BACKGROUND: Screening for lung cancer using high resolution computed tomography (CT) has produced encouraging early results. Extremely small nodules and non-palpable areas of opacifications are able to be detected, but pose a challenge to the thoracic surgeon trying to resect these areas. METHODS: Forty five patients with ground glass opacifications (GGOs) or small pulmonary nodules underwent pre-operative CT-guided placement of methylene blue dyed agar and/or hook wire needle localization prior to thoracoscopic resection...
October 2016: Journal of Thoracic Disease
https://www.readbyqxmd.com/read/28066666/ct-guided-percutaneous-microwave-ablation-of-pulmonary-malignant-tumors
#14
Wei-Chun Ko, Yee-Fan Lee, Yi-Chang Chen, Ning Chien, Yu-Sen Huang, Yao-Hui Tseng, Jang-Ming Lee, Hsao-Hsun Hsu, Jin-Shing Chen, Yeun-Chung Chang
BACKGROUND: Microwave ablation (MWA) of lung tumors is a new approach for local tumor control. The purpose of this retrospective study was to evaluate the preliminary results of safety and efficacy of MWA with a dynamic frequency range (902-928 MHz) and power (10-32 W) for local tumor control of thoracic malignancies. METHODS: From December 1, 2013 to February 1, 2016, there were total 32 lung tumors among 15 patients (7 men, 8 women, age range 43-82 years, mean 57...
October 2016: Journal of Thoracic Disease
https://www.readbyqxmd.com/read/28066603/characteristics-of-cardiothoracic-surgeons-practicing-at-the-top-ranked-us-institutions
#15
Carlo Maria Rosati, Leonidas G Koniaris, Daniela Molena, David Blitzer, Katherine W Su, Mohammad Tahboub, Panos N Vardas, Leonard N Girardi, Mario Gaudino
BACKGROUND: We aimed to determine which factors distinguish cardiothoracic (CT) surgeons practicing at the top-ranked US institutions from their peers. METHODS: Using online resources, we collected demographics, training information and academic metrics of 694 cardiac (n=489; 70%) and thoracic (n=205; 30%) surgeons practicing at 57 preeminent US institutions, including those with the highest US News & World Report ranking ("top CT centers"). RESULTS: Two hundred and ninety-nine (43...
November 2016: Journal of Thoracic Disease
https://www.readbyqxmd.com/read/28065376/dual-energy-ct-virtual-non-calcium-technique-for-detection-of-bone-marrow-edema-in-patients-with-vertebral-fractures-a-prospective-feasibility-study-on-a-single-source-volume-ct-scanner
#16
T Diekhoff, K G Hermann, M Pumberger, B Hamm, M Putzier, M Fuchs
OBJECTIVES: Dual-energy computed tomography (DECT) is a recent development for detecting bone marrow edema (BME) in patients with vertebral compression fractures. The aim of this pilot study was to determine the reliability of single-source DECT in detecting vertebral BME using magnetic resonance imaging (MRI) as standard of reference. MATERIALS AND METHODS: Nine patients with radiographic thoracic or lumbar vertebral compression fractures underwent both, DECT on a 320-row single-source scanner and 1...
February 2017: European Journal of Radiology
https://www.readbyqxmd.com/read/28063076/automatic-detection-of-vertebral-number-abnormalities-in-body-ct-images
#17
Shouhei Hanaoka, Yoshiyasu Nakano, Mitsutaka Nemoto, Yukihiro Nomura, Tomomi Takenaga, Soichiro Miki, Takeharu Yoshikawa, Naoto Hayashi, Yoshitaka Masutani, Akinobu Shimizu
PURPOSE: The anatomical anomaly of the number of vertebral bones is one of the major anomalies in the human body, which can cause confusion of the spinal level in, for example, surgery. The aim of this study is to develop an automatic detection system for this type of anomaly. METHODS: We utilized our previously reported anatomical landmark detection system for this anomaly detection problem. This system uses a landmark point distribution model (L-PDM) to find multiple landmark positions...
January 6, 2017: International Journal of Computer Assisted Radiology and Surgery
https://www.readbyqxmd.com/read/28058956/neuromuscular-blockade-and-inspiratory-breath-hold-during-stereotactic-body-radiation-therapy-for-treatment-of-heart-base-tumors-in-four-dogs
#18
Krista L Kelsey, Lyndsay N Kubicek, Nicholas J Bacon, Terry Torres, Sheilah A Robertson
CASE DESCRIPTION 4 dogs were examined because of pleural effusion and ventricular tachycardia, coughing and supraventricular tachycardia, appendicular osteosarcoma, and syncopal episodes. CLINICAL FINDINGS In all 4 dogs, a heart base tumor was identified by means of thoracic CT. TREATMENT AND OUTCOME In all 4 dogs, the heart base tumors were treated by means of stereotactic body radiation therapy. Dogs were anesthetized, and neuromuscular blockade was achieved with atracurium or vecuronium. A circle rebreathing system with 15 m (50 feet) of anesthetic tubing coursing through the vault wall was used to connect the patient to the anesthesia machine, which was located in the control room...
January 15, 2017: Journal of the American Veterinary Medical Association
https://www.readbyqxmd.com/read/28055250/assessment-of-chest-ct-at-ctdivol-less-than-1-mgy-with-iterative-reconstruction-techniques
#19
Atul Padole, Subba Digumarthy, Efren Flores, Rachna Madan, Shelly Mishra, Amita Sharma, Mannudeep K Kalra
OBJECTIVES: To assess the image quality of chest CT reconstructed with image-based (SafeCT), adaptive statistical (ASIR), and model based (MBIR) iterative reconstruction techniques (IRTs) at CTDIvol less than 1 mGy. METHODS: In an IRB approved study, 25 patients gave written informed consent for acquisition of three Reduced Dose (RD) (0.25, 0.4, 0.8 mGy) chest CT after standard of care CT (8 mGy) on a 64-channel multi-detector CT (MDCT) and reconstructed with SafeCT, ASIR, and MBIR...
January 5, 2017: British Journal of Radiology
https://www.readbyqxmd.com/read/28054136/-role-of-imaging-procedures-in-clarification-of-complications-of-pneumonia
#20
K Lampichler
CLINICAL ISSUE: Despite a considerable number of antimicrobial agents and interdisciplinary treatment options, lower respiratory tract infections are still associated with high morbidity and mortality rates. Infections of the respiratory tract can lead to severe complications, such as empyema, lung abscesses and acute respiratory distress syndrome (ARDS). Besides intrapulmonary complications pneumonia can also impair other organs due to a systemic inflammatory response. Underlying cardiovascular diseases, such as chronic heart failure, arteriosclerosis and dysrhythmia can either deteriorate due to infections or be newly manifested as a result of pneumonia...
January 2017: Der Radiologe
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