scholarly journals Recent Developments in Computed Tomography for Urolithiasis: Diagnosis and Characterization

2012 ◽  
Vol 2012 ◽  
pp. 1-7 ◽  
Author(s):  
P. D. Mc Laughlin ◽  
L. Crush ◽  
M. M. Maher ◽  
O. J. O'Connor
Keyword(s):  
Computed Tomography ◽  
Urinary Tract ◽  
Ct Scanning ◽  
Radiologic Imaging ◽  
Recent Developments ◽  
Urinary Tract Calculi ◽  
Ct Radiation ◽  
Dual Energy Imaging ◽  
Ct Technology

Objective.To critically evaluate the current literature in an effort to establish the current role of radiologic imaging, advances in computed tomography (CT) and standard film radiography in the diagnosis, and characterization of urinary tract calculi.Conclusion. CT has a valuable role when utilized prudently during surveillance of patients following endourological therapy. In this paper, we outline the basic principles relating to the effects of exposure to ionizing radiation as a result of CT scanning. We discuss the current developments in low-dose CT technology, which have resulted in significant reductions in CT radiation doses (to approximately one-third of what they were a decade ago) while preserving image quality. Finally, we will discuss an important recent development now commercially available on the latest generation of CT scanners, namely, dual energy imaging, which is showing promise in urinary tract imaging as a means of characterizing the composition of urinary tract calculi.

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 Noncontrast Computed Tomography Parameters for Predicting Shock Wave Lithotripsy Outcome in Upper Urinary Tract Stone Cases

2018 ◽  
Vol 2018 ◽  
pp. 1-6 ◽  
Author(s):  
Shimpei Yamashita ◽  
Yasuo Kohjimoto ◽  
Yuya Iwahashi ◽  
Takashi Iguchi ◽  
Satoshi Nishizawa ◽  
...  
Keyword(s):  
Computed Tomography ◽  
Shock Wave ◽  
Urinary Tract ◽  
Shock Wave Lithotripsy ◽  
Upper Urinary Tract ◽  
Treatment Choice ◽  
Health Concern ◽  
Urinary Tract Calculi ◽  
Stone Density ◽  
Upper Urinary Tract Calculi

Kidney stones are a major public health concern with continuously increasing worldwide prevalence. Shock wave lithotripsy (SWL) is the first line treatment choice for upper urinary tract calculi with ureteroscopy and has advantages of safety and noninvasiveness, but the treatment success rate of SWL is lower than that of other therapies. It is therefore important to identify predictive factors for SWL outcome and select a suitable treatment choice for patients with upper urinary tract calculi. In recent years, computed tomography (CT) has become the gold standard for diagnosis of upper urinary tract calculi. Several factors based on CT images, including skin-to-stone distance, mean stone density, stone heterogeneity index, and variation coefficient of stone density, have been reported to be useful for predicting SWL outcome. In addition, a new method of analysis, CT texture analysis, is reportedly useful for predicting SWL outcomes. This review aims to summarize CT parameters for predicting the outcome of shock wave lithotripsy in stone cases in the upper urinary tract.

scholarly journals The role of ultrasonography in detecting urinary tract calculi compared to CT scan

2018 ◽  
Vol Volume 10 ◽  
pp. 199-203 ◽  
Author(s):  
Faisal Ahmed ◽  
Mohammad-Reza Askarpour ◽  
Ali Eslahi ◽  
Hossein-Ali Nikbakht ◽  
Seyed-Hamed Jafari ◽  
...  
Keyword(s):  
Urinary Tract ◽  
Ct Scan ◽  
Urinary Tract Calculi

scholarly journals Role of CT urography in patients with suspected urinary tract calculi

2019 ◽  
Vol 2 (2) ◽  
pp. 85-91
Author(s):  
Dr. RS Kuber ◽  
Dr. Radhika Jaipuria ◽  
Dr. Parag Jaipuria
Keyword(s):  
Urinary Tract ◽  
Ct Urography ◽  
Urinary Tract Calculi

scholarly journals Newborns, Infants, and Adolescents in Postmedieval Northern Finland: A Case Study from Keminmaa

2020 ◽  
Author(s):  
Sanna Lipkin ◽  
Sirpa Niinimäki ◽  
Saara Tuovinen ◽  
Heli Maijanen ◽  
Erika Ruhl ◽  
...  
Keyword(s):  
Computed Tomography ◽  
Ct Scanning ◽  
Human Remains ◽  
Historical Sources ◽  
Socialization Process ◽  
Archaeological Material ◽  
Role Of Women

Abstract Four coffins dating from the period between the mid-18th and mid-19th centuries from Keminmaa in northern Ostrobothnian Finland were examined using computed-tomography (CT) scanning, a methodology with research applications for exploring human remains, coffins, and funerary textiles. The age and, in two cases, sex of the remains were estimated, and both historical sources and archaeological material suggest that socialization through gender was apparent in this collection. This article explores both the material testimony of care, dedication, and innocence of newborn and infant burials, as well as the socialization process and role of women adolescents in providing children’s funerary materials.

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