scholarly journals Role of Multislice Computed Tomography and Local Contrast in the Diagnosis and Characterization of Choanal Atresia

2011 ◽  
Vol 2011 ◽  
pp. 1-6 ◽  
Author(s):  
Khaled Al-Noury ◽  
Alsaid Lotfy
Keyword(s):  
Computed Tomography ◽  
Multislice Computed Tomography ◽  
Choanal Atresia ◽  
Charge Syndrome ◽  
Local Contrast ◽  
Head Region ◽  
The Common ◽  
Pyriform Aperture

Objective. To illustrate the role of multislice computed tomography and local contrast instillation in the diagnosis and characterization of choanal atresia. To review the common associated radiological findings.Methods. We analyzed 9 pediatric patients (5 males and 4 females) with suspected choanal atresia by multislice computed tomography. We recorded the type of atresia plate and other congenital malformations of the skull.Results. Multislice computed tomography with local contrast installed delineated the posterior choanae. Three patients had unilateral mixed membranous and bony atresia. Three patients had unilateral pure bony atresia. Only 1 of 7 patients have bilateral bony atresia. It also showed other congenital anomalies in the head region. One patient is with an ear abnormality. One patient had congenital nasal pyriform aperture stenosis. One of these patients had several congenital abnormalities, including cardiac and renal deformities and a hypoplastic lateral semicircular canal. Of the 6 patients diagnosed to have choanal atresia, 1 patient had esophageal atresia and a tracheoesophageal fistula. The remaining patients had no other CHARGE syndrome lesions.Conclusions. Local Contrast medium with the application of the low-dose technique helps to delineate the cause of the nasal obstruction avoiding a high radiation dose to the child.

Role of multislice computed tomography in characterization of different retroperitoneal masses

2017 ◽  
Vol 45 (1) ◽  
pp. 1
Author(s):  
Ahmed Shalaan ◽  
Medhat Refaat ◽  
Hesham Farouk ◽  
GamalSaleh Saleh
Keyword(s):  
Computed Tomography ◽  
Multislice Computed Tomography

scholarly journals Role of Radiologic Computed Tomography in Evaluating Coronavirus (COVID-19) Patients

2021 ◽  
pp. 39-44
Author(s):  
Mwahib Sayed Ahmed Aldosh
Keyword(s):  
Computed Tomography ◽  
Ct Scan ◽  
Ct Scanning ◽  
Viral Disease ◽  
Human Beings ◽  
Complementary Method ◽  
High Incidence ◽  
High Incidence Rate ◽  
The Common

Objective: Coronavirus (Covid 19) is a dangerous viral disease that principally targets the respiratory system of human beings. The main objective of this study is to evaluate the significant effects resulting from Covid19 using radiologic CT scanning technology. Methods: The recent study was conducted in order to evaluate covid19 among the local public. The sample size for this study consisted of two hundred and thirty (230) patients diagnosed with coronavirus and underwent a chest computed tomography scan. The study was conducted at Najran city, between the period from September to December 2020. Results: The results showed that it is possible to diagnose the complications of coronavirus that affects the respiratory tract in an accurate manner using chest CT imaging and the main results revealed that coronavirus COVID-19 affected all, but males more than female. (50-60) Age group was the big distribution while acute respiratory failure is the most common clinical etiology. The CT scan findings revealed that bilateral pneumonia was the common complication with a high incidence rate of 32% percent and blood coagulation achieved 5% percent as the minimum distribution result. Conclusion: The sensitivity of the CT scans in assessing COVID-19 was significantly high, it has the efficiency to assess complications of COVID-19 in an accurate manner, and therefore it has been proposed to use CT scan as a complementary method in covid-19 diagnosis. More studies on coronavirus disease were recommended by the author.

scholarly journals Common Coherence Witnesses and Common Coherent States

Entropy ◽  
2021 ◽  
Vol 23 (9) ◽  
pp. 1136
Author(s):  
Bang-Hai Wang ◽  
Zi-Heng Ding ◽  
Zhihao Ma ◽  
Shao-Ming Fei
Keyword(s):  
Coherent State ◽  
Coherent States ◽  
State Problem ◽  
Properties And Characterization ◽  
The Common ◽  
High Level

We show the properties and characterization of coherence witnesses. We show methods for constructing coherence witnesses for an arbitrary coherent state. We investigate the problem of finding common coherence witnesses for certain class of states. We show that finitely many different witnesses W1,W2,⋯,Wn can detect some common coherent states if and only if ∑i=1ntiWi is still a witnesses for any nonnegative numbers ti(i=1,2,⋯,n). We show coherent states play the role of high-level witnesses. Thus, the common state problem is changed into the question of when different high-level witnesses (coherent states) can detect the same coherence witnesses. Moreover, we show a coherent state and its robust state have no common coherence witness and give a general way to construct optimal coherence witnesses for any comparable states.

scholarly journals ROLE OF MULTISLICE COMPUTED TOMOGRAPHY TO ASSESS EDWARDS SAPIEN PROSTHESIS DEPLOYMENT AND POSITIONING

2011 ◽  
Vol 57 (14) ◽  
pp. E1687
Author(s):  
Helene Eltchaninoff ◽  
Jerome Caudron ◽  
Jeannette Fares ◽  
Camille Hauville ◽  
Matthieu Godin ◽  
...  
Keyword(s):  
Computed Tomography ◽  
Multislice Computed Tomography ◽  
Edwards Sapien

Evaluation of diaphragm in penetrating left thoracoabdominal stab injuries: The role of multislice computed tomography

Injury ◽  
2015 ◽  
Vol 46 (9) ◽  
pp. 1734-1737 ◽  
Author(s):  
Metin Yucel ◽  
Gurhan Bas ◽  
Fatma Kulalı ◽  
Ethem Unal ◽  
Adnan Ozpek ◽  
...  
Keyword(s):  
Computed Tomography ◽  
Multislice Computed Tomography ◽  
Stab Injuries

Midterm results of percutaneous closure of very large atrial septal defects in children: role of multislice computed tomography

2012 ◽  
Vol 7 (12) ◽  
pp. 1428-1434 ◽  
Author(s):  
Davide Marini ◽  
Phalla Ou ◽  
Younes Boudjemline ◽  
Damien Kenny ◽  
Damien Bonnet ◽  
...  
Keyword(s):  
Computed Tomography ◽  
Multislice Computed Tomography ◽  
Percutaneous Closure ◽  
Midterm Results ◽  
Septal Defects ◽  
Atrial Septal Defects
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