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Ultrasound and pulmonary

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https://www.readbyqxmd.com/read/28329155/pulmonary-arterial-stiffness-indices-assessed-by-intravascular-ultrasound-in-children-with-early-pulmonary-vascular-disease-prediction-of-advanced-disease-and-mortality-during-20-year-follow-up
#1
Mark-Jan Ploegstra, Jody G M Brokelman, Jolien W Roos-Hesselink, Johannes M Douwes, Lenny M van Osch-Gevers, Elke S Hoendermis, Annemien E van den Bosch, Maarten Witsenburg, Beatrijs Bartelds, Hans L Hillege, Rolf M F Berger
Aims: Prognosis in children with pulmonary vascular disease (PVD) is closely linked to right ventricular (RV) failure due to increased RV-afterload. Pulmonary arterial (PA) stiffening is known to occur early in the course of PVD and constitutes a main component of RV-afterload. This study aimed to evaluate the clinical value of PA-stiffness in children with PVD by determining its association with advanced pulmonary arterial hypertension (PAH) and mortality at long-term follow-up. Methods and results: Forty-one children with various stages of arterial PVD, defined as mean PA-pressure  ≥20 mmHg and/or pulmonary-to-systemic flow-ratio  ≥1...
March 6, 2017: European Heart Journal Cardiovascular Imaging
https://www.readbyqxmd.com/read/28327204/lung-adenocarcinoma-with-thyroid-metastasis-a-case-report
#2
A Dao, H Jabir, A Taleb, N Benchakroun, Z Bouchbika, T Nezha, H Jouhadi, S Sahraoui, A Benider
BACKGROUND: The metastases of a primary lung cancer over the thyroid gland are extremely rare. We report on an unusual presentation of thyroid metastasis of lung cancer in order to improve the management of similar cases. CASE PRESENTATION: Three years ago, a Moroccan male 59-year-old was admitted for dyspnea, dry cough, and chest pain. He had smoked about 30 cigarette packs a year. Clinical examination revealed a right thyroid nodule. Chest and neck computed tomography (CT) scan showed a proximal left tumor in contact with the pulmonary artery and revealed a suspected nodule in the right lobe of the thyroid with homolateral neck node...
March 21, 2017: BMC Research Notes
https://www.readbyqxmd.com/read/28323733/linear-endobronchial-ultrasound-guided-insertion-of-a-fiducial-marker-a-new-tool-for-tracking-central-lesions
#3
Alessio Casutt, Angela Koutsokera, Nicolas Peguret, Alban Lovis
Stereotactic body radiotherapy (SBRT) is an effective method for the treatment of localized primary lung tumors. Cyberknife, a highly accurate SBRT technique, follows the target during respiratory cycles using a metallic fiducial marker (FM) previously inserted into the lesion. Various methods have been described for the placement of an FM in peripheral pulmonary lesions; however, none of these is appropriate for mediastinal or hilar tumors. The placement of FMs in central lesions to achieve accurate SBRT is particularly relevant due to their higher mobility during respiratory and cardiac cycles...
April 2017: Journal of Bronchology & Interventional Pulmonology
https://www.readbyqxmd.com/read/28322592/intravascular-pulmonary-venous-ultrasound-imaging-for-catheter-ablation-of-atrial-fibrillation
#4
Gabriel Cismaru, Serban Schiau, Lucian Muresan, Radu Rosu, Mihai Puiu, Dana Pop, Dumitru Zdrenghea
Atrial fibrillation is the most common cardiac arrhythmia. The development of electroanatomical mapping is an increase demand for advanced intracardiac imaging techniques of the left atrium and pulmonary veins. IVUS can demonstrate quantitative changes like lumen and wall thickness as well as qualitative changes of the pulmonary or coronary arteries wall. IVUS could also provide relevant real time imaging of the atrial and pulmonary venous wall during catheter ablation. Areas covered: The Medline and Embase databases were searched for preclinical and clinical studies of IVUS in patients with ablation of atrial fibrillation or left atrial arrhythmias...
March 21, 2017: Expert Review of Medical Devices
https://www.readbyqxmd.com/read/28318888/characterization-of-the-lung-parenchyma-using-ultrasound-multiple-scattering
#5
Kaustav Mohanty, John Blackwell, Thomas Egan, Marie Muller
The purpose of the study described here was to showcase the application of ultrasound to quantitative characterization of the micro-architecture of the lung parenchyma to predict the extent of pulmonary edema. The lung parenchyma is a highly complex and diffusive medium for which ultrasound techniques have remained qualitative. The approach presented here is based on ultrasound multiple scattering and exploits the complexity of ultrasound propagation in the lung structure. The experimental setup consisted of a linear transducer array with an 8-MHz central frequency placed in contact with the lung surface...
March 16, 2017: Ultrasound in Medicine & Biology
https://www.readbyqxmd.com/read/28306695/lung-ultrasonography-a-practical-guide-for-cardiologists
#6
Francesco Bianco, Valentina Bucciarelli, Fabrizio Ricci, Raffaele De Caterina, Sabina Gallina
Lung ultrasonography is a well established, user-friendly and easy-to-use technique that can be used in the evaluation of several pathological conditions affecting the lung. Adding lung ultrasonography to traditional echocardiography provides an integrated cardiopulmonary ultrasound analysis. The simultaneous collection of information about the heart and the lungs can help physicians to investigate acute and chronic cardio-pulmonary conditions within a noninvasive, single-probe and all-in-one examination, not exposing the patient to the danger of ionizing radiation...
March 16, 2017: Journal of Cardiovascular Medicine
https://www.readbyqxmd.com/read/28300079/corrigendum-prognostic-value-of-pulmonary-congestion-assessed-by-lung-ultrasound-imaging-during-heart-failure-hospitalisation-a-two-centre-cohort-study
#7
Stefano Coiro, Guillaume Porot, Patrick Rossignol, Giuseppe Ambrosio, Erberto Carluccio, Isabella Tritto, Olivier Huttin, Simon Lemoine, Nicolas Sadoul, Erwan Donal, Faiez Zannad, Nicolas Girerd
No abstract text is available yet for this article.
March 16, 2017: Scientific Reports
https://www.readbyqxmd.com/read/28295792/biventricular-impact-of-mild-to-moderate-pulmonary-valve-stenosis-in-fetal-life
#8
L Guirado, F Crispi, N Masoller, M Bennasar, E Marimon, J Carretero, E Gratacós, J M Martínez, M K Friedberg, O Gómez
OBJECTIVES: to define the pattern of fetal echocardiographic changes associated with isolated pulmonary valve stenosis (PS) and to correlate the echocardiographic findings with the neonatal outcome and the need of postnatal pulmonary valvuloplasty within the first 12 months of life. METHODS: a prospective cohort study was designed on 16 fetuses with isolated PS and 48 controls matched by gestational age at scan (+/- 2 weeks). Fetal standard ultrasound and comprehensive echocardiography, which included cardiovascular morphometric parameters, systolic and diastolic functional and timing-measurements, were performed in all cases...
March 10, 2017: Ultrasound in Obstetrics & Gynecology
https://www.readbyqxmd.com/read/28295525/advantages-and-pitfalls-of-pocket-ultrasound-vs-daily-chest-radiography-in-the-coronary-care-unit-a-single-user-experience
#9
Colin T Phillips, Warren J Manning
BACKGROUND: Pocket ultrasonography may enhance patient diagnosis and care. We sought to assess pocket ultrasound in detecting common conditions in the coronary care unit (CCU) compared to portable daily chest radiography (CXR) and conventional transthoracic echocardiography (TTE). METHODS: An experienced pocket ultrasound user performed a pocket ultrasound examination for interstitial edema, pneumonia, central line seen in the right ventricle, pleural and pericardial effusions, left atrial enlargement, and cardiomegaly...
March 14, 2017: Echocardiography
https://www.readbyqxmd.com/read/28292763/oxygen-delivery-and-the-restoration-of-the-muscle-energetic-balance-following-exercise-implications-for-delayed-muscle-recovery-in-patients-with-copd
#10
Gwenael Layec, Corey R Hart, Joel D Trinity, Oh-Sung Kwon, Matthew J Rossman, Ryan M Broxterman, Yann Le Fur, Eun-Kee Jeong, Russell S Richardson
Patients with chronic obstructive pulmonary disease (COPD) experience a delayed recovery from skeletal muscle fatigue following exhaustive exercise that likely contributes to their progressive loss of mobility. As this phenomenon is not well understood, this study sought to examine post-exercise peripheral oxygen (O2) transport and muscle metabolism dynamics in patients with COPD, two important determinants of muscle recovery. Twenty four subjects, 12 non-hypoxemic patients with COPD and 12 healthy subjects with a sedentary lifestyle, performed dynamic plantar flexion exercise at 40% of maximal work rate (WRmax) with phosphorus magnetic resonance spectroscopy ((31)P-MRS), near-infrared spectroscopy (NIRS), and vascular Doppler ultrasound assessments...
March 14, 2017: American Journal of Physiology. Endocrinology and Metabolism
https://www.readbyqxmd.com/read/28291991/modified-lung-ultrasound-score-for-assessing-and-monitoring-pulmonary-aeration
#11
Silvia Mongodi, Bélaïd Bouhemad, Anita Orlando, Andrea Stella, Guido Tavazzi, Gabriele Via, Giorgio Antonio Iotti, Antonio Braschi, Francesco Mojoli
Purpose Lung Ultrasound Score (LUSS) is a useful tool for lung aeration assessment but presents two theoretical limitations. First, standard LUSS is based on longitudinal scan and detection of number/coalescence of B lines. In the longitudinal scan pleura visualization is limited by intercostal space width. Moreover, coalescence of B lines to define severe loss of aeration is not suitable for non-homogeneous lung pathologies where focal coalescence is possible. We therefore compared longitudinal vs. transversal scan and also cLUSS (standard coalescence-based LUSS) vs...
March 14, 2017: Ultraschall in der Medizin
https://www.readbyqxmd.com/read/28283827/prenatal-ultrasound-genotype-and-outcome-in-a-large-cohort-of-prenatally-affected-patients-with-autosomal-recessive-polycystic-kidney-disease-and-other-hereditary-cystic-kidney-diseases
#12
Florian Erger, Nadina Ortiz Brüchle, Ulrich Gembruch, Klaus Zerres
PURPOSE: To investigate the sonographic and clinical genotype-phenotype correlations in autosomal recessive polycystic kidney disease (ARPKD) and other cystic kidney diseases (CKD) in a large cohort of prenatally detected fetuses with hereditary CKD. METHODS: We retrospectively studied the clinical and diagnostic data of 398 patients referred with prenatal ultrasound findings suggestive of CKD between 1994 and 2010. Cases with confirmed hereditary CKD (n = 130) were analyzed as to their prenatal ultrasound findings, genotype, and possible predictors of clinical outcome...
March 10, 2017: Archives of Gynecology and Obstetrics
https://www.readbyqxmd.com/read/28277918/concordance-of-fetal-echocardiography-in-the-diagnosis-of-congenital-cardiac-disease-utilizing-updated-guidelines
#13
Marijo Aguilera, Kirsten Dummer
OBJECTIVE: We sought to examine the concordance of prenatally diagnosed congenital cardiac disease with postnatal echocardiography. STUDY DESIGN: Patients who underwent fetal echocardiograms performed by pediatric cardiologists at a single referral center from January to December 2014 were reviewed. Fetal echocardiography exams were performed in accordance with guidelines by the American Institute of Ultrasound in Medicine (AIUM) and the American Heart Association (AHA) guidelines (2013 and 2014, respectively)...
March 12, 2017: Journal of Maternal-fetal & Neonatal Medicine
https://www.readbyqxmd.com/read/28274588/unilateral-absence-of-an-external-jugular-vein-in-two-english-bulldogs-with-pulmonary-valve-stenosis
#14
E H Chapel, B A Scansen
Two English bulldogs referred for interventional palliation of severe pulmonary valve stenosis were incidentally diagnosed with unilateral absence of an external jugular vein (left in one case, right in the other) by computed tomography and Doppler ultrasound. The right internal jugular vein also could not be visualized in the dog with absence of the left external jugular vein. Cervical venous anomalies can impact diagnostic or interventional venous catheterization procedures such as balloon pulmonary valvuloplasty...
March 5, 2017: Journal of Veterinary Cardiology: the Official Journal of the European Society of Veterinary Cardiology
https://www.readbyqxmd.com/read/28271386/serial-lung-and-ivc-ultrasound-in-the-assessment-of-congestive-heart-failure
#15
Rachel Spevack, Mohamed Al Shukairi, Dev Jayaraman, Jerrald Dankoff, Lawrence Rudski, Jed Lipes
BACKGROUND: Management of congestive heart failure (CHF) is dependent on clinical assessments of volume status, which are subjective and imprecise. Point-of-care ultrasound (POCUS) is useful in the diagnosis of CHF, but how POCUS findings correlate with therapy remains unknown. This study aimed to determine whether the changes in clinical evaluation of CHF with treatment are mirrored with changes in the number of B lines on lung ultrasound (LUS) and inferior vena cava (IVC) size. In this prospective observational study, investigators performed serial clinical and ultrasound assessments within 24 h of admission (T1), day 1 in hospital (T2) and within 24 h of discharge (T3)...
December 2017: Critical Ultrasound Journal
https://www.readbyqxmd.com/read/28268789/perspective-imaging-of-flow-in-arterial-model-obtained-with-continuous-wave-doppler-focusing-technique
#16
Ryo Nagaoka, Katsuhiro Sasaki, Seiichi Zama, Masaaki Nagone, Hiroshi Nagai, Yasuhito Takeuchi, Yoshifumi Saijo
Flowing emboli in the circulatory system cause fatal diseases such as stroke or pulmonary embolism. Conventional transcranial Doppler ultrasound for detection of emboli requires precise positioning by experienced examiner. In the present study, an easier emboli detection device by visualizing perspective view of blood vessel is proposed. The perspective image was obtained with continuous wave (CW) Doppler ultrasound from 2-dimensional array probe. CW Doppler signal from each element was focused by novel beam forming algorithm to obtain en face images at arbitrary depth to form perspective image...
August 2016: Conference Proceedings: Annual International Conference of the IEEE Engineering in Medicine and Biology Society
https://www.readbyqxmd.com/read/28267443/balloon-removal-after-fetoscopic-endoluminal-tracheal-occlusion-for-congenital-diaphragmatic-hernia
#17
Julio A Jiménez, Elisenda Eixarch, Philip Dekoninck, João R Bennini, Roland Devlieger, Cleisson F Peralta, Eduard Gratacos, Jan Deprest
BACKGROUND: Isolated congenital diaphragmatic hernia (CDH) defect allows viscera to herniate into the chest, competing for space with the developing lungs. At birth, pulmonary hypoplasia leads to respiratory insufficiency and persistent pulmonary hypertension that is lethal in up to 30% of patients. Antenatal measurement of lung size and liver herniation can predict survival after birth. Prenatal intervention aims at stimulating lung development, clinically achieved by percutaneous fetal endoscopic tracheal occlusion (FETO) under local anesthesia...
March 3, 2017: American Journal of Obstetrics and Gynecology
https://www.readbyqxmd.com/read/28264709/a-rare-presentation-of-myxofibrosarcoma-as-a-pancoast-tumor-a-case-report
#18
Vasa Jevremovic, Adnan Yousuf, Zulfiqar Hussain, Amer Abboud, Edgar G Chedrawy
BACKGROUND: Myxofibrosarcoma is an aggressive soft tissue neoplasm, classified as a variant of malignant fibrous histiocytoma. Most often, it occurs in middle to late adult life peaking in the seventh decade and involving the lower extremities (77%), trunk (12%), and retroperitoneum or mediastinum (8%). We report the first case of thoracic myxofibrosarcoma presenting as a Pancoast tumor. CASE PRESENTATION: A 48-year-old non-tobacco smoking African-American man presented with a slow-growing mass in his neck along with 11 kg weight loss over 9 months...
March 7, 2017: Journal of Medical Case Reports
https://www.readbyqxmd.com/read/28260256/lung-ultrasound-b-lines-in-exacerbations-of-chronic-obstructive-pulmonary-disease
#19
Krishna B Sriram, Maninder Singh
We report on preliminary observations on performing lung ultrasound (LUS) in patients admitted to hospital with an exacerbation of chronic obstructive pulmonary disease (COPD). We found that LUS had high specificity and moderate sensitivity in identifying patients with elevated B-type natriuretic peptide. Thus, we hypothesise that LUS may have utility in screening COPD patients with an exacerbation to identify the sub-group with elevated natriuretic peptides and are at risk of increased cardiovascular mortality...
March 2017: Internal Medicine Journal
https://www.readbyqxmd.com/read/28259825/soft-tissue-neoplasms-causing-apparent-venous-thoracic-outlet-syndrome
#20
Aleem K Mirza, Ian J Barrett, Animesh Rathore, Bassem T Elhassan, Peter S Rose, Thomas Shives, Thomas C Bower
Venous thoracic outlet syndrome (vTOS) usually results from compression of the subclavian vein classically as a result of narrowing of the costoclavicular space. We report two rare cases of soft tissue neoplasms resulting in apparent vTOS. The first case is a 46-year old female with a two-year history intermittent unilateral shoulder pain, who was initially diagnosed with intervertebral disk herniation. Cervical fusion was performed, however her symptoms progressed and she additionally developed paresthesias and venous congestion...
March 1, 2017: Annals of Vascular Surgery
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