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Pulmonary imaging

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https://www.readbyqxmd.com/read/27913507/diagnosis-of-suspected-venous-thromboembolism
#1
Clive Kearon
The primary goal of diagnostic testing for venous thromboembolism (VTE) is to identify all patients who could benefit from anticoagulant therapy. Test results that identify patients as having a ≤2% risk of VTE in the next 3 months are judged to exclude deep vein thrombosis (DVT) or pulmonary embolism (PE). Clinical evaluation, with assessment of: (1) clinical pretest probability (CPTP) for VTE; (2) likelihood of important alternative diagnoses; and (3) the probable yield of D-dimer and various imaging tests, guide which tests should be performed...
December 2, 2016: Hematology—the Education Program of the American Society of Hematology
https://www.readbyqxmd.com/read/27913424/digital-3d-reconstructions-using-histological-serial-sections-of-lung-tissue-including-the-alveolar-capillary-network
#2
Roman Grothausmann, Lars Knudsen, Matthias Ochs, Christian Mühlfeld
The alveolar capillary network (ACN) provides an enormously large surface area that is necessary for pulmonary gas exchange. Changes of the ACN during normal or pathological development or in pulmonary diseases are of great functional impact and warrant further analysis. Due to the complexity of the three-dimensional (3D) architecture of the ACN, 2D approaches are limited in providing a comprehensive impression of the characteristics of the normal ACN or the nature of its alterations. Stereological methods offer a quantitative way to assess the ACN in 3D in terms of capillary volume, surface area or number but lack a 3D visualization to interpret the data...
December 2, 2016: American Journal of Physiology. Lung Cellular and Molecular Physiology
https://www.readbyqxmd.com/read/27913087/a-case-of-multiple-empyema-caused-by-streptococcus-intermedius
#3
Akihito Kaga, Ryuzaburo Higo, Hiroshi Yoshikawa, Naoko Yokoi, Takuo Haruyama, Hiroaki Komatsu, Ayumi Yabe, Takeshi Kusunoki, Katsuhisa Ikeda
We report the case of a patient with multiple empyema present throughout his body, including chronic sinusitis and chronic suppurative otitis media, as well as subsequent epidural empyema, all caused by Streptococcus intermedius. A 38-year-old man presented with chief complaints of headache, left ear discharge, and nasal congestion. Imaging studies revealed pansinusitis, soft tissue signs in the mastoid cells, and otitis media. The patient was treated with meropenem hydrate, 6g/day. While clinical findings indicated improvement of the sinusitis, his headache did not improve...
November 29, 2016: Auris, Nasus, Larynx
https://www.readbyqxmd.com/read/27910296/the-year-since-the-guidelines-a-concise-update-on-recent-advances-in-pulmonary-hypertension
#4
Abhishek Mishra, Maninder Singh, Edo Kaluski
Since the updated pulmonary hypertension (PH) guidelines published in 2015, two major landmark trials have provided additional insight regarding therapeutic algorithms of PH. In this review, we concisely summarized the key findings of peer‑reviewed studies published in the last one year in the field of PH. These studies have enhanced our therapeutic abilities by introducing a new potent agent, selexipag, and by demonstrating the advantage of upfront combination therapy (endothelin receptor antagonist and phosphodiesterase‑5 inhibitor) versus single agent therapy in group 1 PH...
February 2017: Minerva Cardioangiologica
https://www.readbyqxmd.com/read/27910139/characterization-of-patients-with-chronic-pulmonary-aspergillosis-according-to-the-new-escmid-ers-ecmm-and-idsa-guidelines
#5
Helmut J F Salzer, Jan Heyckendorf, Barbara Kalsdorf, Thierry Rolling, Christoph Lange
Recently, the Infectious Diseases Society of America (IDSA) and the European Society for Clinical Microbiology and Infectious Diseases (ESCMID) in cooperation with the European Respiratory Society (ERS) and the European Confederation of Medical Mycology (ECMM) published guidelines for the diagnosis of chronic pulmonary aspergillosis (CPA). Both guidelines, however, carry significant differences. We retrospectively applied the diagnostic recommendations on a patient cohort of 71 previously diagnosed CPA patients in order to compare both guidelines...
December 1, 2016: Mycoses
https://www.readbyqxmd.com/read/27910005/doppler-images-of-intra-pulmonary-shunt-within-atelectasis-in-anesthetized-children
#6
Cecilia M Acosta, Gerardo Tusman, Mauro Costantini, Camila Echevarría, Sergio Pollioto, Diego Abrego, Fernando Suarez-Sipmann, Stephan H Böhm
BACKGROUND: Doppler images of pulmonary vessels in pulmonary diseases associated with subpleural consolidations have been described. Color Doppler easily identifies such vessels within consolidations while spectral Doppler analysis allows the differentiation between pulmonary and bronchial arteries. Thus, Doppler helps in diagnosing the nature of consolidations. To our knowledge, Doppler analysis of pulmonary vessels within anesthesia-induced atelectasis has never been described before...
December 2016: Critical Ultrasound Journal
https://www.readbyqxmd.com/read/27909538/pulmonary-vein-remodeling-following-atrial-fibrillation-ablation-implications-for-the-radiographic-diagnosis-of-pulmonary-vein-stenosis
#7
Faisal M Merchant Md, Mathew R Levy Bs, Shahriar Iravanian Md, Ramal M Weragoda Md, Edward C Clermont Md, Heval M Kelli Md, Robert L Eisner PhD, David Vadnais Md, Mikhael F El-Chami Md, Angel R Leon Md, David B Delurgio Md
Background: Pulmonary vein (PV) reverse remodeling has been recognized following atrial fibrillation (AF) ablation. However, the extent of physiologic reverse remodeling after AF ablation and the potential impact of reverse remodeling on the radiographic diagnosis of PV stenosis have not been well characterized. Methods: From January 2004 to February 2014, 186 patients underwent paired cardiac magnetic resonance imaging (MRI) to delineate PV orifice dimensions before and after (mean 109 ± 61 days) an initial AF ablation...
August 2016: Journal of Atrial Fibrillation
https://www.readbyqxmd.com/read/27909274/-three-mitral-valve-operations-in-a-patient-with-trousseau-syndrome-and-nonbacterial-thrombotic-endocarditis-caused-by-ovarian-cancer
#8
Masahito Saito, Naoki Asano, Kazunori Ota, Kazuho Niimi, Koyu Tanaka, Shigeyoshi Gon, Hiroshi Takano
A 52-year-old woman was admitted to our hospital for acute right hemi-paresis, left homonymous hemianopia, and fever. Magnetic resonance imaging of the brain showed multiple cerebral infarctions and transesophageal echocardiography (TEE) revealed a vegetation on the posterior leaflet of her mitral valve. Mitral valve repair was performed under a diagnosis of infective endocarditis (IE). Further multiple cerebral infarctions occurred on the 11th postoperative day, resulting in left hemiplegia and dysarthria...
December 2016: Kyobu Geka. the Japanese Journal of Thoracic Surgery
https://www.readbyqxmd.com/read/27908307/evolution-of-imaging-findings-laboratory-and-functional-parameters-in-rheumatoid-arthritis-patients-after-one-year-of-treatment-with-anti-tnf-%C3%AE-agents
#9
Efstathios E Detorakis, Eleftherios Magkanas, Ismini Lasithiotaki, Prodromos Sidiropoulos, Dimitrios T Boumpas, Nicholas Gourtsoyiannis, Katerina Antoniou, Maria Raissaki
OBJECTIVES: To investigate the efficacy and safety of anti-TNF-α agent treatment compared to non-biologic DMARDs in rheumatoid arthritis patients. METHODS: 82 consecutive patients, 29 males, 53 females, aged 42-79, diagnosed with RA and suitable for anti-TNF-α treatment composed two study groups: 42 with pre-existing rheumatoid arthritis-related interstitial lung disease (RA-ILD) and 40 without RA-ILD. Respective control groups consisted of 44 patients with pre-existing RA-ILD and 44 patients without RA-ILD, treated with non-biologic DMARDs...
October 27, 2016: Clinical and Experimental Rheumatology
https://www.readbyqxmd.com/read/27907049/dual-energy-ct-pulmonary-angiography-with-6g-iodine-a-propensity-score-matched-study
#10
Andreas Meier, Kai Higashigaito, Katharina Martini, Moritz Wurnig, Burkhardt Seifert, Dagmar Keller, Thomas Frauenfelder, Hatem Alkadhi
OBJECTIVE: To evaluate the performance of low contrast media (CM) dose dual-energy computed tomography pulmonary angiography (CTPA) with advanced monoenergetic reconstructions in patients with suspected pulmonary embolism (PE). MATERIALS AND METHODS: The study had institutional review board approval; all patients gave written informed consent. Forty-one patients (25 men, 16 women, mean age 62.9±14.7 years) undergoing low CM dose (15ml, 6g iodine) dual-energy CTPA with advanced monoenergetic reconstructions were matched via propensity-scoring based on logistic regression analysis with a comparison group of 41 patients (24 men, 17 women, mean age 62...
2016: PloS One
https://www.readbyqxmd.com/read/27904916/imaging-of-late-complications-of-cancer-therapy-in-children
#11
REVIEW
Susan C Shelmerdine, Govind B Chavhan, Paul S Babyn, Paul C Nathan, Sue C Kaste
Long-term survival after childhood cancer has improved dramatically over recent decades but survivors face lifelong risks of adverse health effects. Many of these chronic conditions are a direct result of previous therapeutic exposures. Compared to their siblings, survivors face a greater than 8-fold increase in relative risk of severe or life-threatening medical conditions; the most significant of these include second malignancies and cardiovascular and pulmonary diseases. Imaging can play a key role in identifying and characterizing such complications, which can be reasonably predicted with knowledge of the child's treatment...
December 1, 2016: Pediatric Radiology
https://www.readbyqxmd.com/read/27904816/an-unusual-presentation-of-nocardiosis-in-an-allogeneic-transplant-recipient
#12
Uroosa Ibrahim, Amina Saqib, Farhan Mohammad, Terenig Terjanian
Nocardiosis is a rare cause of opportunistic infection post hematopoietic stem cell transplant (HSCT) occurring in about 0.3% of patients. The risk factors include delayed immune reconstitution, prolonged neutropenia, and graft-versus-host disease. The most common site of infection is the lung, followed by the brain and the skin. Concomitant pulmonary and central nervous system (CNS) nocardiosis is an extremely rare entity as presented in our case. We present the case of a 72-year-old male at 137 days post transplant presenting with complaints of headache and slurred speech...
October 17, 2016: Curēus
https://www.readbyqxmd.com/read/27904517/the-impact-of-ace-gene-polymorphism-on-the-incidence-and-phenotype-of-sarcoidosis-in-rural-and-urban-settings
#13
Robert Kieszko, Paweł Krawczyk, Tomasz Powrózek, Aneta Szudy-Szczyrek, Michał Szczyrek, Iwona Homa, Jadwiga Daniluk, Janusz Milanowski
INTRODUCTION: Sarcoidosis is a multisystem granulomatous disease of unknown etiology. Current theory on the etiology of this disease involves participation of genetic factors and unknown antigens present in the patients' environment. The aim of the study was to evaluate the prevalence of different polymorphic forms of the ACE gene in healthy individuals and sarcoidosis patients, and to estimate the risk of sarcoidosis in carriers of different ACE genotypes living in rural and urban settings...
December 1, 2016: Archives of Medical Science: AMS
https://www.readbyqxmd.com/read/27903538/right-ventricular-dysfunction-impairs-effort-tolerance-independent-of-left-ventricular-function-among-patients-undergoing-exercise-stress-myocardial-perfusion-imaging
#14
Jiwon Kim, Antonino Di Franco, Tania Seoane, Aparna Srinivasan, Polydoros N Kampaktsis, Alexi Geevarghese, Samantha R Goldburg, Saadat A Khan, Massimiliano Szulc, Mark B Ratcliffe, Robert A Levine, Ashley E Morgan, Pooja Maddula, Meenakshi Rozenstrauch, Tara Shah, Richard B Devereux, Jonathan W Weinsaft
BACKGROUND: Right ventricular (RV) and left ventricular (LV) function are closely linked due to a variety of factors, including common coronary blood supply. Altered LV perfusion holds the potential to affect the RV, but links between LV ischemia and RV performance, and independent impact of RV dysfunction on effort tolerance, are unknown. METHODS AND RESULTS: The population comprised 2051 patients who underwent exercise stress myocardial perfusion imaging and echo (5...
November 2016: Circulation. Cardiovascular Imaging
https://www.readbyqxmd.com/read/27903179/gamma-knife-radiosurgery-for-brain-metastases-from-pulmonary-large-cell-neuroendocrine-carcinoma-a-japanese-multi-institutional-cooperative-study-jlgk1401
#15
Takuya Kawabe, Masaaki Yamamoto, Yasunori Sato, Shoji Yomo, Takeshi Kondoh, Osamu Nagano, Toru Serizawa, Takahiko Tsugawa, Hisayo Okamoto, Atsuya Akabane, Kazuyasu Aita, Manabu Sato, Hidefumi Jokura, Jun Kawagishi, Takashi Shuto, Hideya Kawai, Akihito Moriki, Hiroyuki Kenai, Yoshiyasu Iwai, Masazumi Gondo, Toshinori Hasegawa, Soichiro Yasuda, Yasuhiro Kikuchi, Yasushi Nagatomo, Shinya Watanabe, Naoya Hashimoto
OBJECTIVE In 1999, the World Health Organization categorized large cell neuroendocrine carcinoma (LCNEC) of the lung as a variant of large cell carcinoma, and LCNEC now accounts for 3% of all lung cancers. Although LCNEC is categorized among the non-small cell lung cancers, its biological behavior has recently been suggested to be very similar to that of a small cell pulmonary malignancy. The clinical outcome for patients with LCNEC is generally poor, and the optimal treatment for this malignancy has not yet been established...
December 2016: Journal of Neurosurgery
https://www.readbyqxmd.com/read/27902842/vagal-denervation-inhibits-the-increase-in-pulmonary-blood-flow-during-partial-lung-aeration-at-birth
#16
Justin A R Lang, James T Pearson, Corinna Binder-Heschl, Megan J Wallace, Melissa L Siew, Marcus J Kitchen, Arjan B Te Pas, Robert A Lewis, Graeme R Polglase, Mikiyasu Shirai, Stuart B Hooper
Air entry into the lungs at birth triggers major cardiovascular changes, including a large increase in pulmonary blood flow (PBF) that is not spatially related to regional lung aeration. To investigate the possible underlying role of a vagally-mediated stimulus, we used simultaneous phase-contrast X-ray imaging and angiography in near-term (30 days of gestation) vagotomised (n = 15) or sham-operated (n = 15) rabbit kittens. Rabbits were imaged before ventilation, when one lung was ventilated (unilateral) with 100% nitrogen (N2 ), air or 100% oxygen (O2 ), before all kittens were switched to unilateral ventilation in air, then ventilation of both lungs using air...
November 30, 2016: Journal of Physiology
https://www.readbyqxmd.com/read/27902753/emphysema-distribution-and-diffusion-capacity-predict-emphysema-progression-in-human-immunodeficiency-virus-infection
#17
Janice M Leung, Andrea Malagoli, Antonella Santoro, Giulia Besutti, Guido Ligabue, Riccardo Scaglioni, Darlene Dai, Cameron Hague, Jonathon Leipsic, Don D Sin, Sf Paul Man, Giovanni Guaraldi
BACKGROUND: Chronic obstructive pulmonary disease (COPD) and emphysema are common amongst patients with human immunodeficiency virus (HIV). We sought to determine the clinical factors that are associated with emphysema progression in HIV. METHODS: 345 HIV-infected patients enrolled in an outpatient HIV metabolic clinic with ≥2 chest computed tomography scans made up the study cohort. Images were qualitatively scored for emphysema based on percentage involvement of the lung...
2016: PloS One
https://www.readbyqxmd.com/read/27901394/computed-tomographic-anatomy-of-the-heads-of-blue-and-gold-macaws-ara-ararauna-african-grey-parrots-psittacus-erithacus-and-monk-parakeets-myiopsitta-monachus
#18
Irene A Veladiano, Tommaso Banzato, Luca Bellini, Alessandro Montani, Salvatore Catania, Alessandro Zotti
OBJECTIVE To create an atlas of the normal CT anatomy of the head of blue-and-gold macaws (Ara ararauna), African grey parrots (Psittacus erithacus), and monk parakeets (Myiopsitta monachus). ANIMALS 3 blue-and-gold macaws, 5 African grey parrots, and 6 monk parakeets and cadavers of 4 adult blue-and-gold macaws, 4 adult African grey parrots, and 7 monk parakeets. PROCEDURES Contrast-enhanced CT imaging of the head of the live birds was performed with a 4-multidetector-row CT scanner. Cadaveric specimens were stored at -20°C until completely frozen, and each head was then sliced at 5-mm intervals to create reference cross sections...
December 2016: American Journal of Veterinary Research
https://www.readbyqxmd.com/read/27900604/assessment-of-interstitial-lung-disease-in-sj%C3%A3-gren-s-syndrome-by-lung-ultrasound-a-pilot-study-of-correlation-with-high-resolution-chest-tomography
#19
Pablo Guisado Vasco, Gonzalo de Luna Cardenal, Isabel Martín Garrido, José Manuel Luque Pinilla, Guadalupe Fraile Rodríguez, Juan José Nava Mateo, Daniel Carnevalli Ruiz
The background of this study is to assess the accuracy of lung ultrasound (LUS) to diagnose interstitial lung disease (ILD) in Sjögren's syndrome (Sjs), in patients who have any alterations in pulmonary function tests (PFT) or respiratory symptoms. LUS was correlated with chest tomography (hrCT), considering it as the imaging gold standard technique to diagnose ILD. This is a pilot, multicenter, cross-sectional, and consecutive-case study. The inclusion criteria are ≥18 years old, Signs and symptoms: according to ACEG 2002 criteria, respiratory symptoms (dyspnea, cough), or any alterations in PFR...
November 29, 2016: Internal and Emergency Medicine
https://www.readbyqxmd.com/read/27900349/symptomatic-bilateral-coronary-artery-fistula-to-pulmonary-artery-in-elderly-patient
#20
Francisco Pereira da Silva, Paulo Donato, Henrique Donato, Elisabete Jorge, Maria Joao Ferreira, Filipe Caseiro-Alves
We report the imaging findings of an uncommon coronary vascular termination anomaly, with fistula to the pulmonary artery. This 70 year old female patient presented unstable angina, showing a coronary artery fistula depicted in coronary angiogram from the left coronary to the pulmonary artery, with no significant atherosclerotic pathology. Due to development of ventricular tachycardia in stress echocardiogram examination, she was proposed for coronary fistula closure. Coronary CT was performed for procedure planning and allowed the identification of a second unsuspected fistula from the right coronary to the right pulmonary artery...
2016: European Journal of Radiology Open
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