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Lung ultrasound

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https://www.readbyqxmd.com/read/28731492/factors-causing-loss-of-normal-doppler-waveform-of-the-left-internal-jugular-vein-evaluation-on-chest-computed-tomography
#1
Min Cheol Ku, Myung Gyu Song, Tae-Seok Seo, Eun Young Kang, Hwan Seok Yong, Jae Wook Lee
PURPOSE: To evaluate the presence and causes of left brachiocephalic vein (LBCV) steno-occlusive lesions in patients with loss of normal waveform in Doppler ultrasound of the left internal jugular vein (LIJV). MATERIALS AND METHODS: We performed Doppler ultrasound of both internal jugular veins in 1912 patients who received an implantable venous access port from August 2013 to January 2016. Among them, 106 patients showed loss of normal Doppler waveforms of the LIJV (56 men and 50 women; mean age, 61...
July 19, 2017: Journal of Vascular Access
https://www.readbyqxmd.com/read/28728712/diagnostic-imaging-and-newer-modalities-for-thoracic-diseases-pet-computed-tomographic-imaging-and-endobronchial-ultrasound-for-staging-and-its-implication-for-lung-cancer
#2
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...
August 2017: Surgical Clinics of North America
https://www.readbyqxmd.com/read/28725645/imaging-bronchopulmonary-dysplasia-a-multimodality-update
#3
REVIEW
Thomas Semple, Mohammed R Akhtar, Catherine M Owens
Bronchopulmonary dysplasia is the most common form of infantile chronic lung disease and results in significant health-care expenditure. The roles of chest radiography and computed tomography (CT) are well documented but numerous recent advances in imaging technology have paved the way for newer imaging techniques including structural pulmonary assessment via lung magnetic resonance imaging (MRI), functional assessment via ventilation, and perfusion MRI and quantitative imaging techniques using both CT and MRI...
2017: Frontiers in Medicine
https://www.readbyqxmd.com/read/28723769/overlooked-diagnosis-of-infected-paratracheal-air-cysts-in-patients-with-respiratory-symptoms-case-report
#4
Kyungsoo Bae, Kyung N Jeon, Mi J Park, Seung J Lee, Ho C Kim, Seung I Cha, Joung H Byun, Jong W Kim
RATIONALE: Infected paratracheal air cysts as the focus of respiratory symptoms can be overlooked in practice because of nonspecific symptoms and physician's scant knowledge for this entity. We report 2 cases of infected paratracheal air cyst diagnosed at chest computed tomography (CT) and bronchoscopy/endobronchial ultrasound. PATIENT CONCERN: Two patients visited our hospital with respiratory symptoms, including cough, sputum, and fever. DIAGNOSES: Chest CT showed paratracheal cystic lesions with air-fluid level in the thoracic inlet...
July 2017: Medicine (Baltimore)
https://www.readbyqxmd.com/read/28711016/therapeutic-supermolecular-micelles-of-vitamin-e-succinate-grafted-%C3%AE%C2%B5-polylysine-as-potential-carriers-for-curcumin-enhancing-tumour-penetration-and-improving-therapeutic-effect-on-glioma
#5
He-Lin Xu, Zi-Liang Fan, De-Li ZhuGe, Bi-Xin Shen, Bing-Hui Jin, Jian Xiao, Cui-Tao Lu, Ying-Zheng Zhao
Severe toxicity and poor tumour penetration are two intrinsic limited factors to hinder the broad clinical application for most of first-line chemotherapeutics. In this study, a novel vitamin E succinate-grafted ε-polylysine (VES-g-PLL) polymer was synthesized by using ε-polylysine as backbone. By adjusting VES graft ratio, VES-g-PLL (50) with a theoretic VES graft ratio of 50% could self-assemble into a supermolecular micelle with a hydrodynamic diameter (Dh) of ca.20nm, and Zeta potential of 19.6mV. VES-g-PLL micelles themselves displayed a strong anti-tumour effect on glioma...
July 12, 2017: Colloids and Surfaces. B, Biointerfaces
https://www.readbyqxmd.com/read/28710662/lung-real-time-three-dimensional-imaging-in-critically-ill-ventilated-patients-a-global-diagnosis-concordance-study
#6
Jean-Marc Le Goff, Claire Roger, Benjamin Louart, Pierre Géraud Claret, Aurélien Daurat, Stéphanie Bulyez, Jean-Yves Lefrant, Xavier Bobbia, Laurent Muller
Lung ultrasound (LUS) increases clinical diagnosis performance in intensive care unit (ICU). Real-time three-dimensional (3-D) imaging was compared with two-dimensional (2-D) LUS by assessing the global diagnosis concordance. In this single center, prospective, observational, pilot study, one trained operator performed a 3-D LUS immediately after a 2-D LUS in eight areas of interest on the same areas in 16 ventilated critically ill patients. All cine loops were recorded on a computer without visible link between 2-D and 3-D exams...
July 14, 2017: Journal of Clinical Monitoring and Computing
https://www.readbyqxmd.com/read/28709488/endobronchial-ultrasound-experience-in-a-high-tuberculosis-prevalence-setting
#7
Balamugesh Thangakunam, Barney Thomas Jesudason Isaac, Devasahayam Jesudas Christopher
BACKGROUND: Most of the published endobronchial ultrasound-guided transbronchial needle aspiration (EBUS-TBNA) data are from the western countries, establishing the role of EBUS-TBNA in the diagnosis and staging of lung cancer. The etiology of mediastinal lymphadenopathy may be different in an ethnic group with a high prevalence of tuberculosis (TB). OBJECTIVE: To assess the etiology of mediastinal adenopathy in a high TB prevalence setting and to determine the performance of various tests in the diagnosis of tuberculous mediastinal lymphadenitis...
July 2017: Indian Journal of Tuberculosis
https://www.readbyqxmd.com/read/28709438/surgical-treatment-for-mediastinal-abscess-induced-by-endobronchial-ultrasound-guided-transbronchial-needle-aspiration-a-case-report-and-literature-review
#8
Yujiro Yokoyama, Takahiro Nakagomi, Daichi Shikata, Rumi Higuchi, Toshio Oyama, Taichiro Goto
BACKGROUND: Endobronchial ultrasound-guided transbronchial needle aspiration (EBUS-TBNA) is a useful and less invasive procedure for the definitive diagnosis of mediastinal and hilar lymph nodes. However, infectious complications can occur after EBUS-TBNA, although they are extremely rare. CASE PRESENTATION: A 66-year-old man with necrotic and swollen lower paratracheal lymph nodes underwent EBUS-TBNA. A mediastinal abscess developed 9 days post-procedure. Surgical drainage and debridement of the abscess were performed along with lymph node biopsy followed by daily washing of the thoracic cavity...
July 14, 2017: World Journal of Surgical Oncology
https://www.readbyqxmd.com/read/28706152/the-role-of-endobronchial-ultrasound-elastography-in-the-diagnosis-of-mediastinal-and-hilar-lymph-nodes
#9
Ye Gu, Hong Shi, Chunxia Su, Xiaoxia Chen, Shijia Zhang, Wei Li, Fengying Wu, Guanghui Gao, Hao Wang, Haiqing Chu, Caicun Zhou, Fei Zhou, Shengxiang Ren
Endobronchial ultrasound-guided transbronchial needle aspiration (EBUS-TBNA) has been widely used for diagnosis and mediastinal lymph nodes staging in patients with suspicious lung cancer. Ultrasound elastography is a novel sonographical technique that can evaluate tissue compressibility. The aim of the present study was to investigate the diagnostic yield of elastography for differentiating malignant and benign mediastinal lymph nodes. Conventional EBUS B-mode features, including size, shape, border distinction, echogenicity, central hilar structure with central blood vessel and coagulation necrosis were also evaluated...
July 6, 2017: Oncotarget
https://www.readbyqxmd.com/read/28704516/ultrasound-diagnosis-of-transverse-sinus-hypoplasia-using-flow-profiles-of-the-internal-jugular-vein
#10
A-Ching Chao, Ke Han, Feng-Chi Chang, Hung-Yi Hsu, Chih-Ping Chung, Wen-Yung Sheng, Lung Chan, Jiang Wu, Han-Hwa Hu
Accurate diagnosis of subtypes of transverse sinus (TS) hypoplasia requires more expensive methods like magnetic resonance (MR) imaging. We hypothesized ultrasound findings of the internal jugular vein (IJV) can be surrogate indicators for diagnosis of TS hypoplasia. MR images were reviewed in 131 subjects to evaluate TS diameter and the location and degree of venous flow stenosis and obstruction. Ultrasound parameters including the cross-sectional lumen area (CSA), time-average-mean velocity (TAMV), and flow volume (FV) at each IJV segment were also evaluated...
2017: PloS One
https://www.readbyqxmd.com/read/28702337/linear-ebus-guided-fiducial-marker-placement-to-guide-radiotherapy-for-endobronchial-radiographically-occult-synchronous-primary-squamous-cell-carcinoma-of-the-lung
#11
David Maurice Chambers, Gregory John Pfister, Umair Ahmad Gauhar
Radiation therapy has emerged as a useful alternative therapy for patients with early-stage, non-resectable lung cancer. In patients whose malignancies are difficult to localize on computed tomography imaging, such therapy becomes difficult. Fiducial markers are frequently placed in peripheral pulmonary lesions to assist radiation therapy. Although placement of markers under linear endobronchial ultrasonography within mediastinal and hilar lymph nodes has been reported, no strategy has been described to assist radiotherapy of purely endobronchial tumors...
2017: Respiratory Medicine Case Reports
https://www.readbyqxmd.com/read/28699175/long-term-health-outcomes-of-adults-with-mccune-albright-syndrome
#12
S C Wong, M Zacharin
CONTEXT: McCune Albright Syndrome (MAS) is associated with numerous health problems. Comprehensive long term health problems of adults with MAS are less well defined in the literature. OBJECTIVE: Our objective is to report comprehensive health outcomes of adults with MAS (> 18 years). DESIGN: Retrospective case note review of 16 adults with MAS managed by one clinician. Results expressed as median (range) RESULTS: The study included 16 adults (7 males) with MAS...
July 12, 2017: Clinical Endocrinology
https://www.readbyqxmd.com/read/28696970/image-characteristics-of-lung-abscess-by-convex-probe-endobronchial-ultrasound
#13
Marwan Saoud, Monali Patil, Samjot Singh Dhillon, Abdul Hamid Alraiyes, Ulas Sunar, Kassem Harris
No abstract text is available yet for this article.
July 2017: Journal of Bronchology & Interventional Pulmonology
https://www.readbyqxmd.com/read/28696965/influence-of-the-learning-effect-on-the-diagnostic-yield-of-endobronchial-ultrasound-guided-transbronchial-needle-aspiration-of-mediastinal-and-hilar-lymph-nodes
#14
Leonello Fuso, Francesco Varone, Daniele Magnini, Antonietta Pecoriello, Giuliano Montemurro, Giulia Angeletti, Salvatore Valente
BACKGROUND: The diagnostic yield of conventional transbronchial needle aspiration (TBNA) is characterized by a learning effect. The aim of this retrospective study was to verify whether a learning curve similarly affected the yield of endobronchial ultrasound-guided (EBUS)-TBNA. To this end, we evaluated the sensitivity and diagnostic accuracy of EBUS-TBNA during the first 3 years of activity. METHODS: EBUS-TBNA was performed by 2 operators with no previous experience in this technique...
July 2017: Journal of Bronchology & Interventional Pulmonology
https://www.readbyqxmd.com/read/28696964/impact-of-ebus-tbna-on-pet-ct-imaging-of-mediastinal-nodes
#15
Pradeesh Sivapalan, Therese Maria Henriette Naur, Sara Colella, Klaus Richter Larsen, Lars Konge, Paul Frost Clementsen
BACKGROUND: Positron emission tomography-computed tomography (PET-CT) with fluorine-18-fluorodeoxyglucose has a high sensitivity in detecting malignancy in patients suspected of lung cancer but a low specificity as inflammatory reactions can also result in metabolic activity. Furthermore, it is assumed that invasive pulmonary procedures with biopsies from benign lesions can induce metabolic activity resulting in false-positive results. However, this hypothesis lacks solid evidence. We aimed to evaluate how often endobronchial ultrasound (EBUS) with biopsies from benign lesions are followed by false-positive results...
July 2017: Journal of Bronchology & Interventional Pulmonology
https://www.readbyqxmd.com/read/28696962/the-use-of-endobronchial-ultrasound-guided-transbronchial-needle-aspiration-cytology-specimens-for-programmed-death-ligand-1-immunohistochemistry-testing-in-non-small-cell-lung-cancer
#16
Sean Stoy, Lauren Rosen, Septimiu Murgu
No abstract text is available yet for this article.
July 2017: Journal of Bronchology & Interventional Pulmonology
https://www.readbyqxmd.com/read/28693444/the-value-of-ultrasound-guided-biopsy-of-fluorodeoxy-glucose-positron-emission-tomography-fdg-pet-positive-supraclavicular-lymph-nodes-in-patients-with-suspected-lung-cancer
#17
Lennart Werner, Franziska Aebersold Keller, Ujwal Bhure, Justus Egidius Roos, Katharina Tornquist, Maria Del Sol Pèrez-Lago, Oliver Gautschi, Klaus Strobel
BACKGROUND: Accurate lymph node staging is essential for adequate prognostication and therapy planning in patients with non-small cell lung cancer (NSCLC). FDG-PET/CT is a sensitive tool for the detection of metastases, including non-palpable supraclavicular lymph node (SCLN) metastases. Histological proof of metastatic spread and mutation analysis is crucial for optimal staging and therapy. The aim of this study was to investigate the value of ultrasound-guided fine needle aspiration cytology (FNAC) and core biopsy (CB) of FDG active, non-palpable SCLN's in patients with suspicion for lung cancer...
July 11, 2017: BMC Medical Imaging
https://www.readbyqxmd.com/read/28693210/resistance-to-epithelial-growth-factor-receptor-tyrosine-kinase-inhibitors-in-a-patient-with-transformation-from-lung-adenocarcinoma-to-small-cell-lung-cancer-a-case-report
#18
Liying Fang, Jian He, Jingwen Xia, Liang Dong, Xiujuan Zhang, Yaqin Chai, Ying Li, Mengjie Niu, Tianxing Hang, Shengqing Li
First-generation epithelial growth factor receptor tyrosine kinase inhibitors (EGFR-TKIs) have markedly improved the treatment of non-small cell lung cancer (non-SCLC) with EGFR-sensitive mutations. However, acquired resistance to these drugs was inevitable. The transformation of lung adenocarcinoma to SCLC following treatment with EGFR-TKIs is a rare phenomenon that contributes to resistance to EGFR-TKIs. The present case concerns a 74-year-old man previously diagnosed with and treated for pneumonia; however, this was later pathologically confirmed as lung adenocarcinoma by transbronchial lung biopsy...
July 2017: Oncology Letters
https://www.readbyqxmd.com/read/28683462/endobronchial-ultrasound-guided-transbronchial-needle-aspiration-for-staging-of-patients-with-non-small-cell-lung-cancer-without-mediastinal-involvement-at-positron-emission-tomography-computed-tomography
#19
Therese Maria Henriette Naur, Lars Konge, Paul Frost Clementsen
BACKGROUND: Staging of lung cancer is essential to the treatment, which is curative only in cases of localized disease. Previous studies have suggested that endobronchial ultrasound-guided transbronchial needle aspiration (EBUS-TBNA) is unnecessary when positron emission tomography-computed tomography (PET-CT) shows no mediastinal involvement. OBJECTIVE: The aim of the study was to investigate how often EBUS-TBNA resulted in a clinically relevant upstaging in patients with lung cancer without mediastinal involvement at PET-CT...
July 6, 2017: Respiration; International Review of Thoracic Diseases
https://www.readbyqxmd.com/read/28682247/line-detection-as-an-inverse-problem-application-to-lung-ultrasound-imaging
#20
N Anantrasirichai, Wesley Hayes, Marco Allinovi, David Bull, Alin Achim
This paper presents a novel method for line restoration in speckle images. We address this as a sparse estimation problem using both convex and non-convex optimisation techniques based on the Radon transform and sparsity regularisation. This breaks into subproblems which are solved using the alternating direction method of multipliers (ADMM), thereby achieving line detection and deconvolution simultaneously. We include an additional deblurring step in the Radon domain via a total variation blind deconvolution to enhance line visualisation and to improve line recognition...
June 29, 2017: IEEE Transactions on Medical Imaging
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