Texture Classi˜cation in Pulmonary CT

2016 ◽  
pp. 356-381 ◽  
Keyword(s):  
Classi Cation ◽  
Pulmonary Ct

scholarly journals Clinical characteristics and outcomes of COVID-19 long-term nucleic acid positive patients

2021 ◽  
pp. 1-10
Author(s):  
Xuan Zhu ◽  
Xinxin Zhu ◽  
Min Wang ◽  
Fang Yang ◽  
Zhibing Sun ◽  
...  
Keyword(s):  
Nucleic Acid ◽  
Clinical Characteristics ◽  
Clinical Symptoms ◽  
Control Group ◽  
Viral Shedding ◽  
Imaging Characteristics ◽  
And Gender ◽  
Acid Test ◽  
Pulmonary Ct

OBJECTIVE: This study aimed to investigate the clinical characteristics and outcomes of coronavirus disease-19 (COVID-19) long-term nucleic acid positive patients (hereinafter referred to as CLTAPs). METHODS: Patients were recruited from the Xiaogan Central Hospital between 16 January 2020 and 28 March 2020. Among the 562 cases of patients with laboratory-identified COVID-19 infection by real-time polymerase chain reaction (qtPCR), 19 cases of COVID-19 patients with more than 41 days from the first to the last time of nucleic acid test were selected as the study group, and 76 cases of age- and gender-matched COVID-19 patients were selected as the control group (hereinafter referred to as C-CLTAPs). Demographic characteristics, clinical symptoms, laboratory examination and computed tomography (CT) imaging characteristics were retrospectively analyzed. RESULTS: On admission, among the 562 cases of patients with COVID-19, there were 398 cases of ordinary COVID-19 patients, 99 cases of severe COVID-19 patients and 99 cases of critical COVID-19 patients. CLTAPs had milder clinical symptoms and longer viral shedding time in comparison to C-CLTAPs. Compared to C-CLTAPs, CLTAPs had a lower infection index at admission. CLTAPs used less oxygen therapy and a higher proportion of hydroxychloroquine treatment in comparison to C-CLTAPs. In comparison to C-CLTAPs, CLTAPs showed slower pulmonary CT progression and faster pulmonary CT absorption. CONCLUSION: In this study, out of the 562 cases, we found 19 CLTAPs. The clinical differences between CLTAPs and C-CLTAPs were compared and analyzed. We hope that these finding can provide a theoretical basis for the treatment of CLTAPs.

Comparison of Mechanical Versus Hand Administration of IV Contrast Agents for Pediatric Pulmonary CT Angiography

2017 ◽  
Vol 208 (3) ◽  
pp. 632-636 ◽  
Author(s):  
Matthew A. Zapala ◽  
David Zurakowski ◽  
Edward Y. Lee
Keyword(s):  
Contrast Agents ◽  
Ct Angiography ◽  
Pulmonary Ct

Overdiagnosis of Pulmonary Embolism by Pulmonary CT Angiography

2015 ◽  
Vol 205 (2) ◽  
pp. 271-277 ◽  
Author(s):  
Barry Donald Hutchinson ◽  
Patrick Navin ◽  
Edith M. Marom ◽  
Mylene T. Truong ◽  
John F. Bruzzi
Keyword(s):  
Pulmonary Embolism ◽  
Ct Angiography ◽  
Pulmonary Ct

Blind and na�ve classi?cation of toxicity by fish chromatophores

2004 ◽  
Vol 24 (5) ◽  
pp. 355-361 ◽  
Author(s):  
Ljiljana Mojovic ◽  
Karen P. Dierksen ◽  
Rosalyn H. Upson ◽  
Bruce A. Caldwell ◽  
Jeannine R. Lawrence ◽  
...  
Keyword(s):  
Classi Cation

COMPARISON OF CLINICOPATHOLOGICAL PARAMETERS WITH HISTOLOGICAL AND MOLECULAR CLASSIFICATION OF BREAST CANCERS

2021 ◽  
pp. 144-149
Author(s):  
K. Indumathi ◽  
E. Theranirajan ◽  
G. Bhavani
Keyword(s):  
Retrospective Study ◽  
Targeted Therapy ◽  
Tertiary Care ◽  
Radical Mastectomy ◽  
Immunohistochemical Method ◽  
Proliferation Index ◽  
Clinicopathological Parameters ◽  
P Value ◽  
Luminal B ◽  
Classi Cation

BACKGROUND: This is a retrospective study of 60 cases, to detect the expression of ER, PR, HER2neu, CK5/6 and Ki67 proliferation index in breast carcinomas by immunohistochemical method and to determine the newer molecular classication. Few patients have recurrence inspite of being diagnosed under the category of low risk and few do well in the high risk group which can be attributed to the molecular level differentiation. AIM: The aim of this study is to categorize the patients under molecular classication, and to compare the clinicopathological parameters with it and to denote the signicance of targeted therapy. MATERIALS AND METHODS: A retrospective study of detecting the expression of the above said markers in modied radical mastectomy specimens received at a tertiary care centre during the period from January 2015 to June 2018. A total of 60 cases which included 30 of IDC NST and 30 cases of special variants were selected for immunohistochemical analysis. RESULTS: Out of the 60 cases studied, the most common was found to be the luminal A type comprising 37% and the least common was the luminal B and hybrid types each comprising 8%. The most common grade for HER2 was Grade III (50%). The association of histological grade with the molecular classication was statistically signicant with the p value of 0.01. Basal type (56%) had the highest incidence of N3 stage. ER, PR, HER2 neu, CK5/6 expression and proliferation index with Ki67 had a statistically signicant association with the molecular classication. High proliferation index (>14%) with Ki67 was noted in Luminal B, Basal and Hybrid types. 78% of the total 60 cases were alive and healthy. One death was reported in HER2, Hybrid and Basal types. The negative kappa value obtained while studying the agreement between the histopathological and molecular classication, indicates that the agreement is worse than chance and hence the importance of molecular classication is substantiated for the targeted therapy.

CHEST X RAY SCORE AND CLINICAL SEVERITY IN COVID-19 PATIENTS

2021 ◽  
pp. 31-32
Author(s):  
Sheeba Rana ◽  
Vicky Bakshi ◽  
Yavini Rawat ◽  
Zaid Bin Afroz
Keyword(s):  
Retrospective Study ◽  
Medical Records ◽  
Scoring Systems ◽  
Clinical Severity ◽  
X Rays ◽  
Antigen Test ◽  
X Ray ◽  
Classi Cation ◽  
Chest X Ray ◽  
Male Subjects

INTRODUCTION: Various chest X-ray scoring systems have been discovered and are employed to correlate with clinical severity, outcome and progression of diseases. With, the coronavirus outbreak, few chest radiograph classication were formulated, like the BSTI classication and the Brixia chest X-ray score. Brixia CXR scoring is used for assessing the clinical severity and outcome of COVID-19. This study aims to compare the Brixia CXR score with clinical severity of COVID-19 patients. MATERIAL& METHODS:This was a retrospective study in which medical records of patients aged 18 years or above, who tested for RTPCR or st st Rapid Antigen Test (RAT) for COVID positive from 1 February 2021 to 31 July 2021 (6 months) were taken. These subjects were stratied into mild, moderate and severe patients according to the ICMR guidelines. Chest X Rays were obtained and lesions were classied according to Brixia scoring system. RESULTS: Out of these 375 patients, 123 (32.8%) were female and 252 (67.2%) were male subjects. The average brixia score was 11.12. Average Brixia CXR score for mild, moderate and severe diseased subjects were 5.23, 11.20, and 14.43 respectively. DISCUSSION:The extent of chest x-ray involvement is proportional to the clinical severity of the patient. Although, a perplexing nding was that the average Brixia score of the female subjects were slightly higher than their male counterparts in the same clinical groups. CONCLUSION: Brixia CXR score correlates well with the clinical severity of the COVID-19.

scholarly journals Clinico-bacterial correlation of bacterial index in Hansen’s disease

2016 ◽  
Vol 6 (12) ◽  
pp. 998-1000
Author(s):  
SM Jha ◽  
AKS Dangol ◽  
S Shakya ◽  
B Jha
Keyword(s):  
Clinical Manifestations ◽  
Clinical Information ◽  
Accurate Diagnosis ◽  
Cross Sectional ◽  
Hansen's Disease ◽  
Hansen’S Disease ◽  
Tuberculoid Leprosy ◽  
Classi Cation ◽  
Leprosy Patients ◽  
Bacterial Index

Background: Leprosy has a broad spectrum of clinical manifestations. Clinical information along with Bacterial evidence is necessary to achieve accurate diagnosis. The present study was carried out to nd out clinical and bacterial correlation in various presentations according to Ridley Jopling classi cation of Hansen’s Disease. Materials and Methods: It was a hospital based cross-sectional comparative study of 72 leprosy patients over a period of 1 year and it’s clinico-Bacterial correlation was done with the help of Slit Skin Smear and clinical classi cation. Results: This study included 72 leprosy patients at various stages according to Ridley Jopling classi cation. Maximum cases belonged to Borderline Tuberculoid leprosy 28(38.88%) followed by Tuberculoid leprosy 15(20.83%). Slit Skin Smear showed 12(42.85%) of Borderline Tuberculoid and 3(20%) of Tuberculoid cases had disparity and didn’t match corresponding clinical subtype. Conclusion: Clinical features along with Bacterial index is useful in making accurate diagnosis so that appropriate treatment could be started and hence deformity and disability could be prevented. 

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