Ability of chest X-ray to detect faint shadows documented as ground-glass attenuation in images of computed tomography: A comparison between flat-panel detector radiography and film-screen radiography

2010 ◽  
Vol 75 (3) ◽  
pp. 384-390 ◽  
Author(s):  
Yukihiro Nagatani ◽  
Norihisa Nitta ◽  
Mitsuru Ikeda ◽  
Hitoshi Kitahara ◽  
Hideji Otani ◽  
...  
Keyword(s):  
Computed Tomography ◽  
Ground Glass ◽  
Flat Panel ◽  
X Ray ◽  
Flat Panel Detector ◽  
Ground Glass Attenuation ◽  
Chest X Ray

scholarly journals Bronchial Leech Infestation in a 15-Year-Old Female

2016 ◽  
Vol 2016 ◽  
pp. 1-4
Author(s):  
Mohammad Ashkan Moslehi ◽  
Mohammad Hadi Imanieh ◽  
Ali Adib
Keyword(s):  
Computed Tomography ◽  
Foreign Body ◽  
Young Children ◽  
Lower Lobe ◽  
Foreign Body Aspiration ◽  
Ground Glass ◽  
Chest Computed Tomography ◽  
X Ray ◽  
Chest X Ray ◽  
The Right

Foreign body aspiration (FBA) is a common incidence in young children. Leeches are rarely reported as FBA at any age. This study describes a 15-year-old female who presented with hemoptysis, hematemesis, coughs, melena, and anemia seven months prior to admission. Chest X-ray showed a round hyperdensity in the right lower lobe. A chest computed tomography (CT) demonstrated an area of consolidation and surrounding ground glass opacities in the right lower lobe. Hematological investigations revealed anemia. Finally, bronchoscopy was performed and a 5 cm leech was found within the rightB7-8bronchus and removed by forceps and a Dormia basket.

Investigation of the Lag Effect in X-Ray Flat-Panel Detector for Cone-Beam Computed Tomography

2020 ◽  
Vol 54 (3) ◽  
pp. 179-183
Author(s):  
A. K. Avakyan ◽  
I. L. Dergacheva ◽  
A. A. Elanchik ◽  
T. A. Krylova ◽  
T. K. Lobzhanidze ◽  
...  
Keyword(s):  
Computed Tomography ◽  
Cone Beam Computed Tomography ◽  
Cone Beam ◽  
Flat Panel ◽  
X Ray ◽  
Flat Panel Detector ◽  
Lag Effect

scholarly journals X-ray flat-panel detector geometry correction to improve dimensional computed tomography measurements

2019 ◽  
Vol 31 (3) ◽  
pp. 035002
Author(s):  
Melina Lüthi ◽  
Benjamin A Bircher ◽  
Felix Meli ◽  
Alain Küng ◽  
Rudolf Thalmann
Keyword(s):  
Computed Tomography ◽  
Flat Panel ◽  
X Ray ◽  
Flat Panel Detector ◽  
Detector Geometry ◽  
Geometry Correction

scholarly journals Efficacy of chest X-ray in the diagnosis of COVID-19 pneumonia: comparison with computed tomography through a simplified scoring system designed for triage

2021 ◽  
Vol 52 (1) ◽  
Author(s):  
Akın Çinkooğlu ◽  
Selen Bayraktaroğlu ◽  
Naim Ceylan ◽  
Recep Savaş
Keyword(s):  
Computed Tomography ◽  
Intensive Care ◽  
Intensive Care Units ◽  
Scoring System ◽  
Imaging Modality ◽  
Ground Glass Opacity ◽  
Initial Presentation ◽  
X Ray ◽  
Chest X Ray

Abstract Background There is no consensus on the imaging modality to be used in the diagnosis and management of Coronavirus disease 2019 (COVID-19) pneumonia. The purpose of this study was to make a comparison between computed tomography (CT) and chest X-ray (CXR) through a scoring system that can be beneficial to the clinicians in making the triage of patients diagnosed with COVID-19 pneumonia at their initial presentation to the hospital. Results Patients with a negative CXR (30.1%) had significantly lower computed tomography score (CTS) (p < 0.001). Among the lung zones where the only infiltration pattern was ground glass opacity (GGO) on CT images, the ratio of abnormality seen on CXRs was 21.6%. The cut-off value of X-ray score (XRS) to distinguish the patients who needed intensive care at follow-up (n = 12) was 6 (AUC = 0.933, 95% CI = 0.886–0.979, 100% sensitivity, 81% specificity). Conclusions Computed tomography is more effective in the diagnosis of COVID-19 pneumonia at the initial presentation due to the ease detection of GGOs. However, a baseline CXR taken after admission to the hospital can be valuable in predicting patients to be monitored in the intensive care units.

scholarly journals Diagnosing gastric volvulus in chest X-ray: report of three cases

2020 ◽  
Vol 2020 (7) ◽  
Author(s):  
Narendra Pandit ◽  
Abhijeet Kumar ◽  
Tek Narayan Yadav ◽  
Qamar Alam Irfan ◽  
Sujan Gautam ◽  
...  
Keyword(s):  
Computed Tomography ◽  
Acute Abdomen ◽  
Gastric Volvulus ◽  
X Ray ◽  
Pain Abdomen ◽  
Life Threatening ◽  
Chest X Ray ◽  
High Index Of Suspicion ◽  
Specific Symptoms ◽  
Prompt Diagnosis

Abstract Gastric volvulus is a rare abnormal rotation of the stomach along its axis. It is a surgical emergency, hence requires prompt diagnosis and treatment to prevent life-threatening gangrenous changes. Hence, a high index of suspicion is required in any patients presenting with an acute abdomen in emergency. The entity can present acutely with pain abdomen and vomiting, or as chronic with non-specific symptoms. Chest X-ray findings to diagnose it may be overlooked in patients with acute abdomen. Here, we report three patients with gastric volvulus, where the diagnosis was based on the chest X-ray findings, confirmed with computed tomography, and managed successfully with surgery.

Planar cone-beam computed tomography with a flat-panel detector

2015 ◽  
Vol 10 (12) ◽  
pp. T12004-T12004 ◽  
Author(s):  
S.H. Kim ◽  
D.W. Kim ◽  
H. Youn ◽  
D. Kim ◽  
S. Kam ◽  
...  
Keyword(s):  
Computed Tomography ◽  
Cone Beam Computed Tomography ◽  
Cone Beam ◽  
Flat Panel ◽  
Flat Panel Detector

Automatic detection method of lung cancers including ground-glass opacities from chest x-ray CT images

2002 ◽  
Author(s):  
Toshiharu Ezoe ◽  
Hotaka Takizawa ◽  
Shinji Yamamoto ◽  
Akinobu Shimizu ◽  
Tohru Matsumoto ◽  
...  
Keyword(s):  
Detection Method ◽  
Automatic Detection ◽  
Ct Images ◽  
Ground Glass ◽  
Lung Cancers ◽  
X Ray ◽  
Chest X Ray
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