226 results match your criteria Lobar Atelectasis Imaging


Imaging findings in 14 dogs and 3 cats with lobar emphysema.

J Vet Intern Med 2021 Jun 18. Epub 2021 Jun 18.

Small Animal Teaching Hospital, University of Liverpool, Neston, UK.

Background: Lobar emphysema in dogs and cats is caused by bronchial collapse during expiration and subsequent air trapping. Congenital causes such as bronchial cartilage defects or acquired causes such as compressive neoplastic lesions have been reported. Morbidity results from hyperinflation of the affected lung lobe and compression of adjacent thoracic structures. Read More

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Airway Foreign Body Mimicking an Endobronchial Tumor Presenting with Pneumothorax in an Adult: A Case Report.

Medicina (Kaunas) 2021 Jan 8;57(1). Epub 2021 Jan 8.

Division of Pulmonary and Critical Care Medicine, Department of Medicine, Samsung Medical Center, Sungkyunkwan University School of Medicine, Seoul 06351, Korea.

Foreign body (FB) aspiration occurs less frequently in adults than in children. Among the complications related to FB aspiration, pneumothorax is rarely reported in adults. Although the majority of FB aspiration cases can be diagnosed easily and accurately by using radiographs and bronchoscopy, some patients are misdiagnosed with endobronchial tumors. Read More

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January 2021

An intrathoracic schwannoma case in F-FDG PET/CT scan.

Hell J Nucl Med 2020 May-Aug;23(2):206-208. Epub 2020 Jul 27.

Pamukkale University, Medicine Faculty, Department of Nuclear Medicine, Denizli, Turkey.

Positron emission tomography /CT images showed a moderately increased F-FDG uptake in the mass of left lung lower lobe superior segment (SUVmax: 2.71). No pathological F-FDG involvement was detected in another region of the whole body scan. Read More

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Three-dimensional Ultrashort Echotime Magnetic Resonance Imaging for Combined Morphologic and Ventilation Imaging in Pediatric Patients With Pulmonary Disease.

J Thorac Imaging 2021 Jan;36(1):43-51

Departments of Diagnostic and Interventional Radiology.

Purpose: Ultrashort echotime (UTE) sequences aim to improve the signal yield in pulmonary magnetic resonance imaging (MRI). We demonstrate the initial results of spiral 3-dimensional (3D) UTE-MRI for combined morphologic and functional imaging in pediatric patients.

Methods: Seven pediatric patients with pulmonary abnormalities were included in this observational, prospective, single-center study, with the patients having the following conditions: cystic fibrosis (CF) with middle lobe atelectasis, CF with allergic bronchopulmonary aspergillosis, primary ciliary dyskinesia, air trapping, congenital lobar overinflation, congenital pulmonary airway malformation, and pulmonary hamartoma. Read More

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January 2021

A clinical guideline for structured assessment of CT-imaging in congenital lung abnormalities.

Paediatr Respir Rev 2021 Mar 20;37:80-88. Epub 2020 Feb 20.

Department of Paediatric Surgery, Erasmus University Medical Centre, Sophia Children's Hospital, Rotterdam, The Netherlands. Electronic address:

Objectives: To develop a clinical guideline for structured assessment and uniform reporting of congenital lung abnormalities (CLA) on Computed Tomography (CT)-scans.

Materials And Methods: A systematic literature search was conducted for articles describing CT-scan abnormalities of congenital pulmonary airway malformation (CPAM), bronchopulmonary sequestration (BPS), congenital lobar emphysema (CLE) and bronchogenic cyst (BC). A structured report using objective features of CLA was developed after consensus between a pediatric pulmonologist, radiologist and surgeon. Read More

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Diffuse Large B-Cell Lymphoma Arising from the Lesion of Chronic Lobar Atelectasis.

Tohoku J Exp Med 2020 02;250(2):129-135

Department of Respiratory Medicine and Infectious Diseases, Oita University Faculty of Medicine.

Pulmonary lymphoma is rare, accounting for < 1% of primary lung cancers. Most primary pulmonary lymphomas (PPL) are low-grade mucosa-associated lymphoid tissue (MALT)-type, and among PPL, diffuse large B-cell lymphoma (DLBCL) is extremely rare. In contrast, there has been an increase in the incidence of DLBCL among patients with autoimmune disorders and recurrent or chronic bacterial infection. Read More

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February 2020

Predictors of impending acute chest syndrome in patients with sickle cell anaemia.

Sci Rep 2020 02 12;10(1):2470. Epub 2020 Feb 12.

Cardeza Foundation for Hematologic Research, Thomas Jefferson University, Philadelphia, USA.

Acute chest syndrome (ACS) is a major complication of sickle cell anaemia (SCA) and a leading cause for hospital admissions and death. We aimed to study the spectrum of clinical and laboratory features of ACS and to assess the predisposing factors and predictors of severity. A retrospective case-control cohort was studied by retrieving patient information from electronic medical records after ethical approval. Read More

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February 2020

Evaluation of the CT imaging findings in the diagnosis of pulmonary hypertension due to chronic thromboembolism.

Clin Respir J 2020 Mar 11;14(3):228-234. Epub 2019 Dec 11.

Department of Cardiology, Afyonkarahisar Health Sciences University, Faculty of Medicine, Afyon, Turkey.

Purpose: Chronic thromboembolic pulmonary hypertension (CTEPH) is the only pulmonary hypertension that can be treated surgically. Multidedector computerized tomography angiography (MDCTA) is considered as an important tool. In this study, the important CT findings of CTEPH and the vascular MDCTA findings of CTEPH were classified as central, peripheral, central and peripheral. Read More

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Combined Thoracoscopic Surgical Stapling and Endobronchial Valve Placement For Lung Volume Reduction With Incomplete Lobar Fissures: An Experimental Pilot Animal Study.

J Bronchology Interv Pulmonol 2020 Apr;27(2):128-134

Division of Thoracic Surgery and Interventional Pulmonology, Beth Israel Deaconess Medical Center, Harvard Medical School, Boston, MA.

Background: In patients with severe emphysema and complete fissures, bronchoscopic lung volume reduction with valves reduces target lobe volume providing improvement in respiratory symptoms, lung function, quality of life, and exercise capacity. It is estimated that up to 88% of patients with emphysema have at least 1 incomplete interlobar fissure. The aim of this study was to evaluate the feasibility of creating a complete fissure with stapling via minimally invasive video-assisted thoracoscopic surgery (VATS) followed by bronchoscopic valve placement to induce lobar collapse in a swine model. Read More

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Lobar Quantification by Ventilation/Perfusion SPECT/CT in Patients with Severe Emphysema Undergoing Lung Volume Reduction with Endobronchial Valves.

Respiration 2019;98(3):230-238. Epub 2019 Jun 5.

Department of Clinical Physiology, Nuclear Medicine and PET, Rigshospitalet, University Hospital of Copenhagen, Copenhagen, Denmark,

Background: Endoscopic lung volume reduction (ELVR) therapy using one-way valves is used to treat chronic obstructive pulmonary disease patients with severe heterogeneous emphysema. A successful treatment results in atelectasis of the treated pulmonary lobe with subsequent reduction of ventilation (V) and perfusion (Q).

Objective: We evaluated the effects of ELVR on the targeted lobe using a new 3-dimensional ventilation and perfusion (V/Q) single-photon emission computed tomography (SPECT)/computed tomography (CT) analysis, which allows for simultaneous semi-automatic lobar pulmonary quantification of volume, ventilation and perfusion, on the first consecutive patients treated with ELVR at Rigshospitalet, Denmark. Read More

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September 2020

Characterizing Spatial Lung Function for Esophageal Cancer Patients Undergoing Radiation Therapy.

Int J Radiat Oncol Biol Phys 2019 03 26;103(3):738-746. Epub 2018 Oct 26.

Department of Radiation Oncology, University of Colorado School of Medicine, Aurora, Colorado.

Purpose: Patients with esophageal cancer treated with chemoradiation and surgery can develop pulmonary complications. Four-dimensional computed tomography-ventilation (4DCT-ventilation) is a developing imaging modality that uses 4DCT data to calculate lung ventilation. 4DCT-ventilation has been studied in the lung-cancer population but has yet to be extended to patients with esophageal cancer. Read More

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Visual analysis versus quantitative CT analysis of interlobar fissure integrity in selecting emphysematous patients for endobronchial valve treatment.

Interact Cardiovasc Thorac Surg 2019 05;28(5):751-759

Thoracic Surgery Unit, Università La Sapienza, Sant'Andrea Hospital, Rome, Italy.

Objectives: The aim of this study is to compare the accuracy of the standard visual scoring of computed tomography (CT) scans with a cloud-based quantitative CT analysis that uses the StratX software, to measure collateral ventilation and, thus, predict lobar atelectasis after valve treatment.

Methods: This is a retrospective, multicentre study of patients who had previously undergone valve treatment for severe heterogeneous emphysema and whose required fissure integrity ≥90% had been qualitatively scored by visual assessment of CT scans. For this study, all preprocedural CT scans were retrospectively analysed using the StratX software to provide quantitative scores of fissure integrity. Read More

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Comparison of different registration landmarks for MRI-CT fusion in radiotherapy for lung cancer with post-obstructive lobar collapse.

J Appl Clin Med Phys 2019 Jan 22;20(1):50-54. Epub 2018 Nov 22.

Department of Radiology, The People's Hospital of Zhengzhou University (Henan Provincial People's Hospital), Zhengzhou, Henan, China.

The registration of the two sets of images based on the spine and pulmonary artery landmarks and the geometric center difference of the mean displacement in the X, Y, and Z directions (X, Y, and Z represent the directions of the body from left to right, superior to inferior, and anterior to posterior) between their MRI-CT fusions were compared, respectively. Fifty-five lung cancer patients with post-obstructive lobar collapse were enrolled in this study. Before radiation, two sets of simulating images according to the spine and the pulmonary artery registrations were obtained for each patient using MRI-CT fusion. Read More

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January 2019

Acute Lobar Atelectasis.

Authors:
John J Marini

Chest 2019 05 5;155(5):1049-1058. Epub 2018 Dec 5.

Pulmonary & Critical Care Medicine Divisions, Regions Hospital & University of Minnesota, Minneapolis/St. Paul, MN. Electronic address:

Lobar atelectasis (or collapse) is an exceedingly common, rather predictable, and potentially pathogenic companion to many forms of acute illness, postoperative care, and chronic debility. Readily diagnosed by using routine chest imaging and bedside ultrasound, the consequences from lobar collapse may be minor or serious, depending on extent, mechanism, patient vulnerability, abruptness of onset, effectiveness of hypoxic vasoconstriction, and compensatory reserves. Measures taken to reduce secretion burden, assure adequate secretion clearance, maintain upright positioning, reverse lung compression, and sustain lung expansion accord with a logical physiologic rationale. Read More

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Necrotizing pneumonia caused by refractory Mycoplasma pneumonia pneumonia in children.

World J Pediatr 2018 08 11;14(4):344-349. Epub 2018 Jun 11.

Children's Hospital, Zhejiang University School of Medicine, No. 3333 Binsheng Road, Hangzhou, 310052, China.

Background: To investigate the clinical features of necrotizing pneumonia (NP) caused by refractory Mycoplasma pneumoniae pneumonia (RMPP).

Methods: A retrospective observational study was carried out in patients with NP caused by RMPP who were admitted to our hospital from January 2008 to December 2015, and the clinical manifestations, laboratory data, imaging performances, hospital courses and outcomes were analyzed.

Results: Twenty-five patients with NP caused by RMPP were collected, with a median age of 5. Read More

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Endobronchial carcinoid tumor: Radiological findings of a clinical case.

Rev Assoc Med Bras (1992) 2018 Jan;64(1):15-18

Department of Radiology and Medical Imaging, Documenta - Hospital São Francisco, Ribeirão Preto, SP, Brazil.

We describe the case of a female patient, 21 years old, complaining of dyspnea attacks and wheezing 2 years ago. Chest radiography showed volume loss in the left lower lobe and ipsilateral retrocardiac triangular basal opacity. CT scan showed an extensive solid mass with apex protruding into the left main and lower lobar bronchi, causing distal atelectasis. Read More

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January 2018

Non-Answered Questions in Patients with Endobronchial Valve Placement for Lung Volume Reduction.

Respiration 2018;95(4):269-272. Epub 2018 Feb 14.

Unit of Interventional Pulmonology, Clínica Alemana de Santiago, Facultad de Medicina Clínica Alemana - Universidad del Desarrollo, Santiago, Chile.

Endoscopic lung volume reduction is a minimally invasive procedure performed to reduce the space occupied by the emphysemas' lobes. This procedure has been demonstrated to be beneficial for patients with advanced chronic obstructive pulmonary disease and severe hyperinflation. The use of endobronchial valves is increasing, as well as the number of reports of adverse events. Read More

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October 2018

Normal Tissue Complication Probability Modeling of Pulmonary Toxicity After Stereotactic and Hypofractionated Radiation Therapy for Central Lung Tumors.

Int J Radiat Oncol Biol Phys 2018 03 21;100(3):738-747. Epub 2017 Nov 21.

Department of Radiation Oncology, Cancer Center Amsterdam, VU University Medical Center, Amsterdam, The Netherlands.

Purpose: To evaluate clinical pulmonary and radiographic bronchial toxicity after stereotactic ablative radiation therapy and hypofractionated radiation therapy for central lung tumors, and perform normal tissue complication probability modeling and multivariable analyses to identify predictors for toxicity.

Methods And Materials: A pooled analysis was performed of patients with a central lung tumor treated using ≤12 fractions at 2 centers between 2006 and 2015. Airways were manually contoured on planning computed tomography scans, and doses were recalculated to an equivalent dose of 2 Gy per fraction with an α/β ratio of 3. Read More

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Computed tomography in adult patients with primary ciliary dyskinesia: Typical imaging findings.

PLoS One 2018 6;13(2):e0191457. Epub 2018 Feb 6.

Department of Respiratory Medicine, Hannover Medical School, Hannover, Germany.

Objectives: Among patients with non-cystic fibrosis bronchiectasis, 1-18% have an underlying diagnosis of primary ciliary dyskinesia (PCD) and it is suspected that there is under-recognition of this disease. Our intention was to evaluate the specific features of PCD seen on computed tomography (CT) in the cohort of bronchiectasis in order to facilitate the diagnosis.

Materials And Methods: One hundred and twenty-one CTs performed in patients with bronchiectasis were scored for the involvement, type, and lobar distribution of bronchiectasis, bronchial dilatation, and bronchial wall thickening. Read More

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Computed tomography of the thorax in rabbits: a prospective study in ten clinically healthy New Zealand White rabbits.

Acta Vet Scand 2017 Oct 24;59(1):72. Epub 2017 Oct 24.

Clinic for Diagnostic Imaging, Vetsuisse Faculty, University of Zurich, Winterthurerstrasse 258c, 8057, Zurich, Switzerland.

Background: Literature investigating the normal cross-sectional anatomy of rabbits with computed tomography (CT) is sparse and incomplete. The purpose of the present study was to investigate the normal thoracic structures, in particular the cranial thorax, with CT angiography in 10 clinically healthy New Zealand White (NZW) rabbits.

Results: Absolute and relative measurements of the trachea, heart, thoracic caudal vena cava and aorta, right and left principal bronchi, right and left caudal lobar bronchi and the accompanying branches of the right and left pulmonary artery and vein, right and left lung volume and lung density were taken. Read More

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October 2017

Filamin A (FLNA) mutation-A newcomer to the childhood interstitial lung disease (ChILD) classification.

Pediatr Pulmonol 2017 10 12;52(10):1306-1315. Epub 2017 Sep 12.

Department of Clinical Radiology, Great Ormond Street Hospital, London, UK.

Aim: Interstitial lung disease (ILD) in infants represents a rare and heterogenous group of disorders, distinct from those occurring in adults. In recent years a new entity within this category is being recognized, namely filamin A (FLNA) mutation related lung disease. Our aims are to describe the clinical and radiological course of patients with this disease entity to aid clinicians in the prognostic counseling and management of similar patients they may encounter. Read More

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October 2017

[Functional respiratory imaging after neostigmine- or sugammadex-enhanced recovery from neuromuscular blockade in the anesthetised rat: a randomised controlled pilot study].

Rev Bras Anestesiol 2017 Sep - Oct;67(5):443-449. Epub 2017 May 16.

University of Antwerp, Deparment of Algology, Wilrijk, Bélgica.

Objectives: Reductions in diaphragm activity are associated with the postoperative development of atelectasis. Neostigmine reversal is also associated with increased atelectasis. We assessed the effects of neostigmine, sugammadex, and spontaneous reversal on regional lung ventilation and airway flow. Read More

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Persistent Lobar Atelectasis in a Patient With Chronic Hoarseness.

Chest 2017 05;151(5):e107-e113

Department of Pulmonology and Critical Care, Augusta University, Augusta, GA.

A 61-year-old woman presented for outpatient evaluation of a 1-week history of fever and upper respiratory symptoms. She denied tobacco use, weight loss, hemoptysis, chronic cough, or recent travel and was in otherwise good health. Her medical history was insignificant except for her chronic hoarseness from a prior laryngeal disease. Read More

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Covered Balloon-Expanding Stents in Airway Stenosis.

J Bronchology Interv Pulmonol 2017 Apr;24(2):174-177

*Division of Thoracic Surgery and Interventional Pulmonology, Beth Israel Deaconess Medical Center ¶Division of Pulmonary and Critical Care Medicine, Massachusetts General Hospital, Harvard Medical School, Boston, MA †Division of Pulmonary Diseases, Critical Care and Environmental Medicine, Tulane University Health Sciences Center, New Orleans, LA ‡Interventional Pulmonology, California Pacific Medical Center, San Francisco ∥Interventional Pulmonology, University of California, Los Angeles, CA §Interventional Pulmonology, Lenox Hill Hospital, New York, NY.

Background: The balloon-expanding stents are widely available but rarely described for use within the tracheobronchial tree. This report describes our experience with these stents in airway stenosis particularly as a lobar salvage therapy.

Methods: This was a retrospective review of all records in which the balloon-expanding stents were used at a tertiary medical center. Read More

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[Clinical characteristics and prognosis of mediastinal fibrosis].

Zhonghua Jie He He Hu Xi Za Zhi 2017 Mar;40(3):199-204

Deparment of Pulmonary and Critical Care Medicine, Peking University First Hospital, Beijing 100034, China.

To investigate the clinical characteristics and prognosis of mediastinal fibrosis. Twelve patients with mediastinal fibrosis diagnosed between 2008 and 2015 in our hospital were studied retrospectively. Clinical manifestations, radiological characteristics, endoscopic features, treatment and prognosis were analyzed. Read More

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Clinical and radiological outcome following pneumothorax after endoscopic lung volume reduction with valves.

Int J Chron Obstruct Pulmon Dis 2016 7;11:3093-3099. Epub 2016 Dec 7.

Pneumology and Critical Care Medicine, Thoraxklinik at University of Heidelberg; German Center for Lung Research.

Introduction: Valve implantation has evolved as a therapy for patients with advanced emphysema. Although it is a minimally invasive treatment, it is associated with complications, the most common being pneumothorax. Pneumothorax occurs due to the rapid target lobe volume reduction and may be a predictor of clinical benefit despite this complication. Read More

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CT findings of small cell lung carcinoma: Can recognizable features be found?

Medicine (Baltimore) 2016 Nov;95(47):e5426

Department of Radiology, CHA Bundang Medical Center, CHA University, Yatap-dong, Bundang-gu, Seongnam-si, Gyeonggi-do Department of Radiology, St. Mary Dain Hospital, Mangpo-dong, Youngtong-gu, Suwon-si Department of Radiology, Seoul National University Hospital, Daehak-ro, Jongno-gu, Seoul, Republic of Korea.

The purpose of this study was to clarify the recognizable computed tomography (CT) features of small cell lung carcinoma (SCLC).Contrast enhanced CT scans were reviewed retrospectively for mass location, mediastinal extension, and other concomitant findings in 142 patients with pathologically proven SCLC. SCLC was classified into hilar mass only (type I), hilar mass with ipsilateral mediastinal extension (type II), hilar mass with bilateral mediastinal extension (type III), and peripheral mass (type IV). Read More

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November 2016

Middle Lobe Torsion after Unilateral Lung Transplant.

J Radiol Case Rep 2016 May 31;10(5):15-21. Epub 2016 May 31.

Department of Radiology, University of South Florida Morsani College of Medicine, Tampa, USA.

Lobar torsion is well documented after pneumonectomy, but is very rare after lung transplant. To the best of our knowledge, this is the twelfth reported case of lobar torsion after lung transplant. In our case, bronchoscopies and chest radiographs were inconclusive; however, CT scan clearly demonstrated findings consistent with right middle lobe torsion. Read More

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[Assessment of pulmonary complications in renal transplantation through the use of radiography].

Rev Med Inst Mex Seguro Soc 2016 ;54 Suppl 2:S168-74

Departamento de Radiología, Hospital de Especialidades, Centro Médico Nacional Siglo XXI, Instituto Mexicano del Seguro Social, Ciudad de México, México.

Background: Lower respiratory tract infections are the most common complications in kidney transplant patients in the first six months and they are associated with high mortality. Other complications include pulmonary edema, pulmonary embolism, and pulmonary hemorrhage. The aim of this study was to evaluate pulmonary complications in kidney transplant patients by using chest radiography. Read More

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Hypoxia during general anesthesia? Unknown foreign body aspiration.

J Clin Anesth 2016 Sep 29;33:176-8. Epub 2016 Apr 29.

Anaesthesiology and Reanimation, Maltepe University, Istanbul, Turkey. Electronic address:

An 18-month-old male patient, classified as American Society of Anesthesiologists I, with bilateral inguinal hernia was scheduled for operation. Preanesthetic evaluation revealed history of completed medical treatment of acute bronchitis 10 days ago, and his respiratory examination was recorded as normal. He was successfully operated under general anesthesia with a laryngeal mask. Read More

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September 2016