scholarly journals A computed tomography scoring system to assess pulmonary disease among premature infants

2010 ◽  
Vol 128 (6) ◽  
pp. 328-335 ◽  
Author(s):  
Márcia Cristina Bastos Boechat ◽  
Rosane Reis de Mello ◽  
Kátia Silveira da Silva ◽  
Pedro Daltro ◽  
Edson Marchiori ◽  
...  
Keyword(s):  
Computed Tomography ◽  
Premature Infants ◽  
Predictive Value ◽  
Scoring System ◽  
Intraclass Correlation ◽  
Pulmonary Involvement ◽  
Respiratory Morbidity ◽  
First Year ◽  
High Resolution Computed Tomography ◽  
First Year Of Life

CONTEXT AND OBJECTIVE: High-resolution computed tomography (HRCT) is considered to be the best method for detailed pulmonary evaluation. The aim here was to describe a scoring system based on abnormalities identified on HRCT among premature infants, and measure the predictive validity of the score in relation to respiratory morbidity during the first year of life. DESIGN AND SETTING: Prospective cohort study in Instituto Fernandes Figueira, Fundação Oswaldo Cruz. METHODS: Scoring system based on HRCT abnormalities among premature newborns. The affected lung area was quantified according to the number of compromised lobes, in addition to bilateral pulmonary involvement. Two radiologists applied the score to 86 HRCT scans. Intraobserver and interobserver agreement were analyzed. The score properties were calculated in relation to predictions of respiratory morbidity during the first year of life. RESULTS: Most of the patients (85%) presented abnormalities on HRCT, and among these, 56.2% presented respiratory morbidity during the first year of life. Scores ranged from zero to 12. There was good agreement between observers (intraclass correlation coefficient, ICC = 0.86, confidence interval, CI: 0.64-0.83). The predictive scores were as follows: positive predictive value 81.8%, negative predictive value 56.3%, sensitivity 39.1%, and specificity 90.0%. CONCLUSION: The scoring system is reproducible, easy to apply and allows HRCT comparisons among premature infants, by identifying patients with greater likelihood of respiratory morbidity during the first year of life. Its use will enable HRCT comparisons among premature infants with different risk factors for respiratory morbidity.

scholarly journals Radiologist agreement on the quantification of bronchiectasis by high-resolution computed tomography

2017 ◽  
Vol 50 (1) ◽  
pp. 26-31 ◽  
Author(s):  
Milene Carneiro Barbosa de Brito ◽  
Maurício Kenji Ota ◽  
Fernando Sergio Studart Leitão Filho ◽  
Gustavo de Souza Portes Meirelles
Keyword(s):  
Computed Tomography ◽  
High Resolution ◽  
Scoring System ◽  
Interobserver Agreement ◽  
Intraclass Correlation ◽  
Final Analysis ◽  
Intraobserver Agreement ◽  
Excellent Correlation ◽  
High Resolution Computed Tomography ◽  
Ground Glass Attenuation

Abstract Objective: To evaluate radiologist agreement on the quantification of bronchiectasis by high-resolution computed tomography (HRCT). Materials and Methods: The HRCT scans of 43 patients with bronchiectasis were analyzed by two radiologists, who used a scoring system to grade the findings. Kappa (κ) values and overall agreement were calculated. Results: For the measurement and appearance of bronchiectasis, the interobserver agreement was moderate (κ = 0.45 and κ = 0.43, respectively), as was the intraobserver agreement (κ = 0.54 and κ = 0.47, respectively). Agreement on the presence of mucous plugging was fair, for central distribution (overall interobserver agreement of 68.3% and κ = 0.39 for intraobserver agreement) and for peripheral distribution (κ = 0.34 and κ = 0.35 for interobserver and intraobserver agreement, respectively). The agreement was also fair for peribronchial thickening (κ = 0.21 and κ = 0.30 for interobserver and intraobserver agreement, respectively). There was fair interobserver and intraobserver agreement on the detection of opacities (κ = 0.39 and 71.9%, respectively), ground-glass attenuation (64.3% and κ = 0.24, respectively), and cysts/bullae (κ = 0.47 and κ = 0.44, respectively). Qualitative analysis of the HRCT findings of bronchiectasis and the resulting individual patient scores showed that there was an excellent correlation between the observers (intraclass correlation coefficient of 0.85 and 0.81 for interobserver and intraobserver agreement, respectively). Conclusion: In the interpretation of HRCT findings of bronchiectasis, radiologist agreement appears to be fair. In our final analysis of the findings using the proposed score, we observed excellent interobserver and intraobserver agreement.

scholarly journals Neonatal risk factors for respiratory morbidity during the first year of life among premature infants

2006 ◽  
Vol 124 (2) ◽  
pp. 77-84 ◽  
Author(s):  
Rosane Reis de Mello ◽  
Maria Virgínia Peixoto Dutra ◽  
José Roberto Ramos ◽  
Pedro Daltro ◽  
Márcia Boechat ◽  
...  
Keyword(s):  
Risk Factors ◽  
Mechanical Ventilation ◽  
Birth Weight ◽  
Premature Infants ◽  
Ductus Arteriosus ◽  
Lung Compliance ◽  
Respiratory Morbidity ◽  
Pulmonary Mechanics ◽  
First Year ◽  
First Year Of Life

CONTEXT AND OBJECTIVE: There have been dramatic increases in very low birth weight infant survival. However, respiratory morbidity remains problematic. The aim here was to verify associations between pulmonary mechanics, pulmonary structural abnormalities and respiratory morbidity during the first year of life. DESIGN AND SETTING: Prospective cohort study at Instituto Fernandes Figueira, Fundação Oswaldo Cruz, Rio de Janeiro. METHODS: Premature infants with birth weight < 1500 g were studied. Lung function tests and high-resolution chest tomography were performed before discharge. During the first year, infants were assessed for respiratory morbidity (obstructive airways, pneumonia or hospitalization). Neonatal lung tests and chest tomography and covariables potentially associated with respiratory morbidity were independently assessed using relative risk (RR). RR was subsequently adjusted via logistic regression. RESULTS: Ninety-seven newborn infants (mean birth weight: 1113g; mean gestational age: 28 weeks) were assessed. Lung compliance and lung resistance were abnormal in 40% and 59%. Tomography abnormalities were found in 72%; respiratory morbidity in 53%. Bivariate analysis showed respiratory morbidity associated with: mechanical ventilation, prolonged oxygen use (beyond 28 days), oxygen use at 36 weeks, respiratory distress syndrome, neonatal pneumonia and patent ductus arteriosus. Multivariate analysis gave RR 2.7 (confidence interval: 0.7-10.0) for simultaneous lung compliance and chest tomography abnormalities. Adjusted RR for neonatal pneumonia and mechanical ventilation were greater. CONCLUSIONS: Upon discharge, there were high rates of lung mechanism and tomography abnormalities. More than 50% presented respiratory morbidity during the first year. Neonatal pneumonia and mechanical ventilation use were statistically significant risk factors.

Abnormal Shoulder Girdle Muscle Tone in Premature Infants During Their First 18 Months of Life

PEDIATRICS ◽  
1986 ◽  
Vol 77 (5) ◽  
pp. 664-669
Author(s):  
Michael K. Georgieff ◽  
Judy C. Bernbaum
Keyword(s):  
Premature Infants ◽  
Motor Development ◽  
Muscle Tone ◽  
Birth Asphyxia ◽  
Shoulder Girdle ◽  
First Year ◽  
First Year Of Life ◽  
Girdle Muscle ◽  
Shoulder Girdle Muscle

To document the incidence of and neonatal factors associated with abnormal shoulder girdle muscle tone in premature infants at follow-up, we studied 125 consecutively admitted infants weighing &lt; 1,750 g treated in The Children's Hospital of Philadelphia intensive care nursery and subsequently seen in the Neonatal Follow-up Program up to 18 months of age. Fifty-seven infants (46%) displayed abnormal shoulder girdle muscle tone which presented clinically as scapular retractions. These infants had significantly lower birth weights (P &lt; .001) and gestational age (P &lt; .001) as well as a higher incidence of acute and chronic pulmonary disease (P &lt; 0.01) and CNS insults (P &lt; .05) when compared with infants without scapular retractions. The 57 infants with scapular retractions were further divided into two groups: 42 infants (74%) in whom scapular retractions were associated with generalized mild hypertonicity and 15 infants (26%) in whom scapular retractions compensated for trunk and neck hypotonicity. The infants with scapular retractions and hypotonicity had a significantly higher incidence of neonatal neurologic morbidity including seizures, major resuscitations, and birth asphyxia (P &lt; .01) when compared with the infants with scapular retractions and hypertonicity. Shoulder girdle tone abnormalities in the first year of life inhibit crawling, sitting, and object manipulation and, therefore, may manifest as delays in motor development. Identification of infants with significant neonatal risk factors for tone abnormalities is important to allow for earlier therapeutic intervention.

Diagnostic Accuracy of HRCT Chest in Detection of Covid-19 Infection Taking PCR as Gold Standard

2021 ◽  
Vol 15 (6) ◽  
pp. 1679-1681
Author(s):  
Afaque Ali ◽  
Majid Shaikh ◽  
Ahsanullah . ◽  
Adeel Ahmed ◽  
Abid Ali Sahito ◽  
...  
Keyword(s):  
Computed Tomography ◽  
High Resolution ◽  
Diagnostic Accuracy ◽  
Predictive Value ◽  
Gold Standard ◽  
Cross Sectional Study ◽  
Radiology Department ◽  
High Resolution Computed Tomography ◽  
Cross Sectional ◽  
Head Of Department

Objective: To determine the diagnostic accuracy of High-resolution computed tomography (HRCT) chest in detection of covid-19 infection taking PCR as gold standard. Study Design: Cross-sectional study Setting: Radiology department of Tabba Hospital, Karachi. Duration: From March 2019 to September 2020 Material and Methods: All the clinically suspected patients of covid-19, of any age, both genders and those referred to radiology for High-resolution computed tomography (HRCT) chest to detect the covid-19 infection were included. After two days, patients’ PCR reports were collected from the ward, after taking informed consent and permission from head of department. The diagnostic accuracy of HRCT was established with respect to sensitivity, PPV, NPV, and specificity by taking PCR as gold standard. All the information was collected via study proforma. Results: Total 70 patients suspected for COVID-19 were studied, and the patients’ mean age was 58.23±9.52 years. Males were in majority 54(77.1%). As per HRCT findings, COVID-19 infection was positive in 46 patients, however, 48 patients were detected positive for COVID-19 infection as per PCR findings. In the detection of COVID-19 infection, HRCT chest showed sensitivity of 91%, specificity of 90%, PPV of 83%, NPV of 84% and diagnostic accuracy of 94%; by taking PCR as gold standard. Conclusion: High-resolution computed tomography (HRCT) is a reliable diagnostic approach in promptly detecting the COVID-19; with 91% sensitivity, 90% specificity, 83% positive predictive value, 84% negative predictive value and 94% diagnostic accuracy. Keywords: Accuracy, HRCT, COVID-19

scholarly journals Phenotyping of Chronic Obstructive Pulmonary Disease Using the Modified Bhalla Scoring System for High-Resolution Computed Tomography

2013 ◽  
Vol 20 (2) ◽  
pp. 91-96 ◽  
Author(s):  
Baykal Tulek ◽  
Ali Sami Kivrak ◽  
Seda Ozbek ◽  
Fikret Kanat ◽  
Mecit Suerdem
Keyword(s):  
Computed Tomography ◽  
Chronic Obstructive Pulmonary Disease ◽  
High Resolution ◽  
Pulmonary Disease ◽  
Scoring System ◽  
Morphological Changes ◽  
Forced Expiratory Volume ◽  
Chronic Obstructive ◽  
High Resolution Computed Tomography ◽  
Obstructive Pulmonary Disease

BACKGROUND: Identifying different phenotypes of chronic obstructive pulmonary disease (COPD) is important for both therapeutic options and clinical outcome of the disease.OBJECTIVE: To characterize the phenotypes of COPD according to high-resolution computed tomography (HRCT) findings; and to correlate HRCT scores obtained using the modified Bhalla scoring system with clinical and physiological indicators of systemic inflammation.METHODS: The present study included 80 consecutive patients with stable COPD. HRCT scans were evaluated by two independent radiologists according to the modified Bhalla scoring system.RESULTS: Fifty-four patients exhibited morphological changes on HRCT examination while 26 had no pathological findings. Patients with HRCT findings had lower spirometric measurements and higher levels of inflammation, and reported more exacerbations in the previous year compared with patients with no findings on HRCT. Patients with morphological changes were classified into one of three groups according to their HRCT phenotype(s): emphysema (E) only, E + bronchiectasis (B)/peribronchial thickening (PBT) or B/PBT only. Forced vital capacity (FVC), forced expiratory volume in 1 s (FEV1), FEV1/FVC ratio, C-reactive protein (CRP) levels and the number of exacerbations among the groups were significantly different. Pairwise comparisons between the E only and E+B/PBT groups showed significantly lower FVC, FEV1and FEV1/FVC values, and higher CRP levels and number of exacerbations compared with the B/PBT group. No significant differences were found between the E+B/PBT and the B/PBT groups. An inverse correlation was found between the total HRCT score and FVC, FEV1and FEV1/FVC; the correlation was positive with CRP level, erythrocyte sedimentation rate and number of exacerbations.CONCLUSION: The present study exposed the intimate relationship between phenotype(s) characterized by HRCT and scoring for morphological abnormalities; and clinical and functional parameters and inflammatory markers. The inclusion of HRCT among routine examinations for COPD may provide significant benefits both in the management and prognosis of COPD patients.

THE EFFECT OF MONTHLY GAMMA-GLOBULIN ADMINISTRATION ON MORBIDITY AND MORTALITY FROM INFECTION IN PREMATURE INFANTS DURING THE FIRST YEAR OF LIFE

PEDIATRICS ◽  
1963 ◽  
Vol 32 (1) ◽  
pp. 4-9 ◽  
Author(s):  
Jules Amer ◽  
Esther Ott ◽  
Frank A. Ibbott ◽  
Donough O'Brien ◽  
C. Henry Kempe
Keyword(s):  
Premature Infants ◽  
Gamma Globulin ◽  
Repeated Administration ◽  
Morbidity And Mortality ◽  
Controlled Study ◽  
First Year ◽  
Double Blind ◽  
First Year Of Life

A double-blind controlled study to determine the effect on infections of repeated administration of large doses of gamma-globulin to premature infants revealed that significantly more of these infants had no infections and fewer had mild infections during the first year of life. The data also suggests that gamma-globulin afforded some amelioration of serious but nonfatal infections. Deaths from infection showed a similar trend in favor of the gamma-globulin group, but this difference on its own was not significant.

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