236 results match your criteria Lobar Atelectasis Imaging


COVID-19 on Chest CT: Translating Known Microscopic Findings to Imaging Observations.

Life (Basel) 2022 Jun 8;12(6). Epub 2022 Jun 8.

Department of Radiology, Columbia University Medical Center, New York, NY 10032, USA.

Purpose: To describe the imaging findings of COVID-19 and correlate them with their known pathology observations.

Methods: This is an IRB-approved retrospective study performed at Columbia University Irving Medical Center () that included symptomatic adult patients (21 years or older) who presented to our emergency room and tested positive for COVID-19 and were either admitted or discharged with at least one chest CT from 11 March 2020 through 1 July 2020. CT scans were ordered by the physicians caring for the patients; our COVID-19 care protocols did not specify the timing for chest CT scans. Read More

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CT features of community-acquired pneumonia at the emergency department.

Respir Med Res 2022 May 28;81:100892. Epub 2022 Apr 28.

AP-HP, Hôpital Bichat, Service de radiologie, 46 rue Henri Huchard; Université de Paris Cité - Faculté de Médecine Bichat, 75018 Paris, France; INSERM UMR 1152, Paris, France.

Background: Chest computed tomography (CT) was reported to improve the diagnosis of community-acquired pneumonia (CAP) as compared to chest X-ray (CXR). The aim of this study is to describe the CT-patterns of CAP in a large population visiting the emergency department and to see if some of them are more frequently missed on CXR.

Materials And Methods: This is an ancillary analysis of the prospective multicenter ESCAPED study including 319 patients. Read More

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Fatal congenital lobar emphysema in a puerpera: a case report and literature review.

BMC Pulm Med 2021 Dec 20;21(1):421. Epub 2021 Dec 20.

Department of Thoracic Surgery, West China Hospital, Sichuan University, No. 37 Guoxue Alley, Chengdu, 610041, Sichuan, China.

Background: Congenital lobal emphysema (CLE) is a developmental lung abnormality usually diagnosed in the neonatal period and is rarely observed in adults. Adults with CLE are usually asymptomatic and only a small fraction may present with coughing, recurrent pneumonia and respiratory distress. In imaging studies, the most frequently affected lobe of CLE is the left upper lobe, followed by the right middle lobe. Read More

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December 2021

Chest computed tomography findings among adult Indigenous Australians in the Northern Territory of Australia.

J Med Imaging Radiat Oncol 2022 Apr 27;66(3):337-344. Epub 2021 Jul 27.

Department of Medical Imaging, Royal Darwin Hospital, Darwin, Northern Territory, Australia.

Introduction: There is sparse evidence in the literature in relation to the chest computed tomography (CT) findings among adult Indigenous Australians with chronic respiratory conditions.

Methods: In this retrospective study, patients who underwent chest CT between 2012 and 2020 among those referred to undergo lung function tests (spirometry) were assessed for the prevalence of abnormal chest CT radiological findings.

Results: Of the 402 patients (59% female) included in this study, 331 (82%) had an abnormality identified on chest CT. Read More

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Computed Tomography in Adults with Bronchiectasis and Nontuberculous Mycobacterial Pulmonary Disease: Typical Imaging Findings.

J Clin Med 2021 Jun 21;10(12). Epub 2021 Jun 21.

Department of Respiratory Medicine, Hannover Medical School, Carl-Neuberg-Str. 1, 30625 Hannover, Germany.

Among patients with bronchiectasis, nontuberculous mycobacterial pulmonary disease (NTM-PD) ranged between 1 and 6% and it is suspected that its prevalence is underestimated. Our aim was to evaluate differences in computed tomography (CT) features in patients with bronchiectasis, with and without NTM-PD, in order to facilitate earlier diagnosis in the future. In addition, we evaluated longitudinal changes after successful NTM-PD treatment. Read More

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Clinical features and treatment of bronchial rupture of pulmonary hydatid cyst in children: a retrospective study of 36 patients.

Gen Thorac Cardiovasc Surg 2021 Dec 19;69(12):1539-1544. Epub 2021 Jun 19.

Faculté de Médecine Et de Pharmacie, Université Mohammed V, Rabat, Morocco.

Background: The aim of this study was to review the clinical symptoms, radiological data, surgical techniques, and postoperative complications associated with bronchial rupture of pulmonary hydatid cysts in children and evaluate the results of surgical treatment.

Materials And Methods: A retrospective study of 40 surgical procedures performed for pulmonary hydatid cyst ruptured in the bronchial tree in 36 children (22 boys and 14 girls), aged between 7 and 18 from January 2009 to December 2019.

Results: The study included 36 patients with a mean age of 14. Read More

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December 2021

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

J Vet Intern Med 2021 Jul 18;35(4):1935-1942. 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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Lung Navigation Ventilation Protocol to Optimize Biopsy of Peripheral Lung Lesions.

J Bronchology Interv Pulmonol 2022 Jan;29(1):7-17

FirstHealth of the Carolinas and Pinehurst Medical Clinic, Pinehurst, NC.

Background: Computed tomography-to-body divergence caused by respiratory motion, atelectasis, diaphragmatic motion and other factors is an obstacle to peripheral lung biopsies. We examined a conventional ventilation strategy versus a lung navigation ventilation protocol (LNVP) optimized for intraprocedural 3-dimensional image acquisition and bronchoscopic biopsy of peripheral lung nodules.

Methods: A retrospective, single center study was conducted in consecutive subjects with peripheral lung lesions measuring <30 mm. Read More

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January 2022

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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Determination of anomalous pulmonary venous return with high-pitch low-dose computed tomography in paediatric patients.

Folia Morphol (Warsz) 2021 27;80(2):336-343. Epub 2020 May 27.

Department of Radiology, School of Medicine, Ataturk University, Erzurum, Turkey.

Background: In this study, we aimed to image pulmonary venous return anomalies and associated cardiovascular and pulmonary abnormalities by high-pitch low-dose computed tomography (CT) in children.

Materials And Methods: Forty-one patients with total or partial anomalous pulmonary venous return anomalous between May 2012 and June 2019 were retrospectively reviewed. The anomalies were determined using high-pitch low-dose CT. Read More

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October 2021

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

Vanishing Middle Bronchus in Bilateral Lung Transplant After Ex Vivo Lung Perfusion.

Exp Clin Transplant 2020 02 24;18(1):133-135. Epub 2019 Dec 24.

From the Cardiothoracic and Vascular Department, Division of Respiratory Medicine, "Città della Salute e della Scienza" Hospital and University of Torino, Turin, Italy.

Lung transplant has become the mainstay of therapy for most end-stage lung diseases. Airway complications are one of the most important problems during the first year after lung transplant. In this context, the most severe form of bronchial stenosis reported in the literature is vanishing bronchus syndrome, which is the obliteration with atresia of the ostium of a lobar bronchus, usually related to ischemia and infection. 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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Bronchoscopic surfactant administration in premature neonate with persistent lobar atelectasis: the new concept.

J Matern Fetal Neonatal Med 2021 Oct 21;34(19):3277-3279. Epub 2019 Oct 21.

Pediatric Interventional Pulmonology Division, Shiraz University of Medical Sciences, Shiraz, Iran.

Neonatal pulmonary atelectasis (NPA) is the collapse or closure of a lung resulting in reduced or absent gas exchange. NPA is a common clinical complication among premature neonates and can contribute to a need for prolong mechanical ventilation and poor prognosis. It is usually unilateral. Read More

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October 2021

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