Covid-19 disease: CT chest volume assessment using nonspecific software “Lung Density” present on “Extended Brilliance Workspace”

2020 ◽  
Author(s):  
Spanò Ferdinando ◽  
Arminio Matteo ◽  
Carucci Alessandro ◽  
Di Luzio Dario ◽  
Grimaldi Iolanda ◽  
...  
Keyword(s):  
Computed Tomography ◽  
Acute Respiratory Disease ◽  
Post Processing ◽  
High Resolution Computed Tomography ◽  
Lung Density ◽  
Asymptomatic Patients ◽  
Volume Assessment ◽  
Healthy Lung Tissue ◽  
Essential Support ◽  
Healthy Lung

The current global COVID-19 pandemic is related to an acute respiratory disease caused by a new coronavirus (SARS-CoV-2), highly contagious and whose evolution is still poorly understood. The high-resolution Computed Tomography (HRCT) is the most accurate technique for identifying pathogenetic finding of interstitial pneumonia. Standardized HRCT examination in COVID patients binds quantitative evaluation of healthy lung tissue performed in post-processing. In this study we present a valid tool for the Radiologist the diagnosis of Covid-19 diagnosis, an essential support in the evaluation of emergency symptomatic patients with negative NAAT, or asymptomatic patients with negative NAAT who have come into contact with positive one, in fact asymptomatic patients can also have lung lesions on CT imaging.

Acute Pulmonary Oxygen Toxicity in Rats: Findings and Lung Density Changes in High Resolution Computed Tomography

2000 ◽  
Vol 42 (3) ◽  
pp. 473
Author(s):  
Dae Sik Ryu ◽  
Kun Sang Kim ◽  
Kil Hyen Kang ◽  
Haing Sup Chung ◽  
Bung Wok Lee ◽  
...  
Keyword(s):  
Computed Tomography ◽  
High Resolution ◽  
Oxygen Toxicity ◽  
High Resolution Computed Tomography ◽  
Lung Density

scholarly journals Asymptomatic secondary hyperparathyroidism can mimic sacroiliitis on computed tomography

2021 ◽  
Vol 11 (1) ◽  
Author(s):  
Virginie Kreutzinger ◽  
Torsten Diekhoff ◽  
Lutz Liefeldt ◽  
Denis Poddubnyy ◽  
Kay Geert A. Hermann ◽  
...  
Keyword(s):  
Computed Tomography ◽  
High Resolution ◽  
Secondary Hyperparathyroidism ◽  
Demographic Data ◽  
Joint Space ◽  
Electronic Patient Records ◽  
Retrospective Case ◽  
High Resolution Computed Tomography ◽  
Asymptomatic Patients ◽  
Control Study

AbstractSecondary hyperparathyroidism (sHPT) as a result of chronic kidney disease (CKD) is a common health problem and has been reported to manifest at the sacroiliac joints (SIJ). The aim of this investigation was to systematically assess sacroiliac joint changes in asymptomatic sHPT as detected by high-resolution CT. Included in this IRB-approved retrospective case–control study were 56 patients with asymptomatic sHPT as well as 259 matched controls without SIJ disease. Demographic data were retrieved from electronic patient records. High-resolution computed tomography datasets of all patients were subjected to a structured scoring, including erosions, sclerosis, osteophytes, joint space alterations and intraarticular calcifications. Chi2 tests were used to compare frequencies of lesions. Erosions were significantly more prevalent in patients with sHPT, and were found mainly in the ventral (28.6% vs. 13.9%; p = 0.016) and middle (17.9% vs. 7.7%; p = 0.040) iliac portions of the SIJ. Partial ankylosis was rare in both cohorts (3.6% vs. 5.0%; p > 0.999); complete ankylosis was not observed. Neither extent not prevalence of sclerosis or calcifications differed significantly between groups. Joint lesions reminiscent of sacroiliitis can be found in a substantial portion of asymptomatic patients with secondary hyperparathyroidism. Further investigations into the clinical significance of these findings are warranted.

Longitudinal Follow-up Study of Smoking-induced Lung Density Changes by High-resolution Computed Tomography

2000 ◽  
Vol 161 (4) ◽  
pp. 1264-1273 ◽  
Author(s):  
KENZO SOEJIMA ◽  
KAZUHIRO YAMAGUCHI ◽  
EIICHI KOHDA ◽  
KEI TAKESHITA ◽  
YOKO ITO ◽  
...  
Keyword(s):  
Computed Tomography ◽  
High Resolution ◽  
High Resolution Computed Tomography ◽  
Lung Density ◽  
Follow Up Study

scholarly journals SURGICAL TREATMENT OF THE CYSTIC ADENOMATOUS PULMONARY MALFORMATION IN CHILDREN

2018 ◽  
Vol 22 (3) ◽  
pp. 135-137
Author(s):  
G. I. Chepurnoy ◽  
V. B. Katsupeev ◽  
Mikhail G. Chepurnoy ◽  
R. L. Karagezyan ◽  
A. V. Leyga ◽  
...  
Keyword(s):  
Computed Tomography ◽  
Surgical Treatment ◽  
Lung Disease ◽  
Lung Tissue ◽  
Spiral Computed ◽  
Surgical Interventions ◽  
Decisive Importance ◽  
Healthy Lung Tissue ◽  
Healthy Lung

There is presented the analysis of 13 patients with polycystic lung disease. In the diagnosis of the disease, spiral computed tomography has a decisive importance. The technique of performing surgical interventions aimed at maximum preservation of healthy lung tissue is described in detail. The excision of cystic membranes and reliable suturing of bronchial fistulas determines the radicality of surgical interventions that provided favorable outcomes in the long term after operations in all patients.

scholarly journals Performance and Analysis of Automatic Detection Of Ground-Glass Pattern in Lung Disease using High-Resolution Computed Tomography

2015 ◽  
Vol 4 (3) ◽  
pp. 95
Author(s):  
M. Anto Bennet ◽  
G. Sankar Babu ◽  
S. Mekala ◽  
S. Natarjan ◽  
N. Srinivasan
Keyword(s):  
Computed Tomography ◽  
High Resolution ◽  
Lung Disease ◽  
Gabor Filter ◽  
Automatic Detection ◽  
Noise Removal ◽  
Ground Glass ◽  
Post Processing ◽  
High Resolution Computed Tomography ◽  
Glass Pattern

This study proposes an approach for automatic detection of Ground glass pattern, a lung disease, from Computed Tomography (CT) and High Resolution Computed Tomography (HRCT) scans of the lung. The algorithm is based on frequency spectrum analysis of image using Gabor filter bank. Gabor filter banks are used to support the frequency extraction process. These algorithms when applied to HRCT images will assist doctors to gain more information than from the CT images. The tasks are completed in three steps: Preliminary mask formation, Peripheral mask formation and finally post processing. By these, higher sensitivity and selectivity may be achieved with fast processing time. In the post processing, binary noise removal technique is used to remove noise from the detection mask.

scholarly journals A Normal Range of KL-6/MUC1 Independent of Elevated SP-D Indicates a Better Prognosis in the Patients with Honeycombing on High-Resolution Computed Tomography

2011 ◽  
Vol 2011 ◽  
pp. 1-7 ◽  
Author(s):  
Shu Hisata ◽  
Yuichiro Kimura ◽  
Naoko Shibata ◽  
Shuichi Ono ◽  
Takao Kobayashi ◽  
...  
Keyword(s):  
Computed Tomography ◽  
High Resolution ◽  
Prognostic Value ◽  
Respiratory Symptoms ◽  
Immunohistochemical Analysis ◽  
The Other ◽  
Normal Range ◽  
High Resolution Computed Tomography ◽  
Asymptomatic Patients ◽  
Independent Effects

Both SP-D and KL-6/MUC1 are established biomarkers of the interstitial pneumonias, including idiopathic pulmonary fibrosis (IPF), but the causes and clinical outcomes based on their independent effects are not known. Eleven asymptomatic patients, detected with honeycombing on high-resolution computed tomography (HRCT), were compared with 17 other IPF outpatients having slight respiratory symptoms and honeycombing as well. Although SP-D was increased in both groups, KL-6 was significantly higher in the symptomatic IPF group. When the patients (n=11) having both biomarkers elevated were compared with the other patients (n=6) with only SP-D elevated, the distribution of fibrotic lesions with honeycombing on HRCT was larger and the survival time was shorter in the patients having both biomarkers elevated. Immunohistochemical analysis also differentiated these biomarkers in the lung. These results suggest both a cause and the prognostic value of dissociation of these biomarkers.

Computed Tomography of Epidural Fibrosis after Discectomy: A Comparison between Symptomatic and Asymptomatic Patients

Neurosurgery ◽  
1988 ◽  
Vol 23 (6) ◽  
pp. 710-713 ◽  
Author(s):  
Patrizio Cervellini ◽  
Decio Curri ◽  
Lorenzo Volpin ◽  
Lorenzo Bernardi ◽  
Vittore Pinna ◽  
...  
Keyword(s):  
Computed Tomography ◽  
Failed Back Surgery Syndrome ◽  
Epidural Fibrosis ◽  
High Resolution Computed Tomography ◽  
Disc Surgery ◽  
Asymptomatic Patients ◽  
Failed Back Surgery ◽  
Common Causes ◽  
Recurrent Herniation

Abstract The evaluation of patients with symptoms recurrent after disc surgery is a difficult diagnostic problem. The most common causes are recurrent herniation and postoperative scarring; routine x-ray and myelographic differentiation between herniation and scarring is difficult or impossible. High resolution computed tomography (CT) has shown some results in the evaluation of postoperative patients, but the role of epidural fibrosis in failed back surgery syndrome (FBSS) is not clear. Some knowledge of the “normal” CT physiological healing and scarring after disc surgery is necessary. We scanned 20 asymptomatic operated patients and 20 patients with recurrent sciatic nerve pain after disc surgery who did not have bony stenosis, recurrent disc herniation, or other causes of FBSS. Our observations showed no important differences in the fibrosis demonstrated by CT between symptomatic and asymptomatic patients. The degree and type of fibrosis are not related to recurrent symptoms.

Determination of the Activity of Pulmonary Tuberculosis: the Utility of High-Resolution Computed Tomography

2000 ◽  
Vol 42 (5) ◽  
pp. 757
Author(s):  
Myung Hee Chung ◽  
Hae Giu Lee ◽  
Won Jong Yu ◽  
Hong Jun Chung ◽  
Bo Sung Yang ◽  
...  
Keyword(s):  
Computed Tomography ◽  
High Resolution ◽  
Pulmonary Tuberculosis ◽  
High Resolution Computed Tomography
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