scholarly journals Container CT scanner: a solution for modular emergency radiology department during the COVID-19 pandemic

Author(s):  
Zixing Huang ◽  
◽  
Shuang Zhao ◽  
Qi Leng ◽  
Shaoping Hu ◽  
...  
Author(s):  
Vincenzo Russo ◽  
Camilla Sportoletti ◽  
Giulia Scalas ◽  
Domenico Attinà ◽  
Francesco Buia ◽  
...  

Abstract Purpose To evaluate the feasibility of triple rule out computed tomography (TRO-CT) in an emergency radiology workflow by comparing the diagnostic performance of cardiovascular and general radiologists in the interpretation of emergency TRO-CT studies in patients with acute and atypical chest pain. Methods Between July 2017 and December 2019, 350 adult patients underwent TRO-CT studies for the assessment of atypical chest pain. Three radiologists with different fields and years of expertise (a cardioradiologist—CR, an emergency senior radiologist—SER, and an emergency junior radiologist—JER) retrospectively and independently reviewed all TRO-CT studies, by trans-axial and multiplanar reconstruction only. Concordance rates were then calculated using as reference blinded results from a different senior cardioradiologist, who previously evaluated studies using all available analysis software. Results Concordance rate was 100% for acute aortic syndrome (AAS) and pulmonary embolism (PE). About coronary stenosis (CS) for non-obstructive (<50%), CS concordance rates were 97.98%, 90.91%, and 97.18%, respectively, for CR, SER, and JER; for obstructive CS (>50%), concordance rates were respectively 88%, 85.7%, and 71.43%. Moreover, it was globally observed a better performance in the evaluation of last half of examinations compared with the first one. Conclusions Our study confirm the feasibility of the TRO-CT even in an Emergency Radiology department that cannot rely on a 24/7 availability of a dedicated skilled cardiovascular radiologist. The “undedicated” radiologists could exclude with good diagnostic accuracy the presence of obstructive stenosis, those with a clinical impact on patient management, without needing time-consuming software and/or reconstructions.


2019 ◽  
Vol 16 (10) ◽  
pp. 1440-1446
Author(s):  
Renata R. Almeida ◽  
McKinley Glover ◽  
Sarah F. Mercaldo ◽  
Diego B. López ◽  
David K. Tso ◽  
...  

2021 ◽  
Vol 9 (3) ◽  
pp. 256-260
Author(s):  
  F. Jaafari ◽  
M. Ouali Idrissi ◽  
B. Bannar ◽  
B. Boutakioute ◽  
N. Cherif Idrissi Ganouni

2009 ◽  
Vol 114 (6) ◽  
pp. 996-1008 ◽  
Author(s):  
S. Cantoni ◽  
F. De Stefano ◽  
A. Mari ◽  
F. Savaia ◽  
R. Rosso ◽  
...  

2020 ◽  
Vol 10 (2) ◽  
Author(s):  
Sidra Saeed ◽  
Abdul Majid ◽  
Zeenat Adil ◽  
Mahnoor Rehman ◽  
Anisa Sandal ◽  
...  

Background: Post-anticancer chemotherapy changes in lung parenchyma is an important and challenging aetiology for radiologists presenting not uncommonly in cancer patients. Early diagnosis of post-chemotherapy lung toxicity have serious implications on patient's health.Objective: To evaluate post-chemotherapy cancer patients for pulmonary toxicity and establish their association with frequency of chemotherapy cycles and time lapse since last cycle.Material and Methods: This retrospective study was conducted in Kuwait teaching Hospital from January 2018 till December 2018. A total of 204 patients were evaluated with age ranging from 3 to 78 years including 63 male and 141 female patients. Chest CT scan had been done on16 slice Toshiba CT scanner in Radiology department of Kuwait Teaching Hospital. Images were evaluated in axial, coronal and sagittal planes and in lung and soft tissue window on workstation. Data like patient age ,gender , malignancy , number of chemotherapy cycles received , time lapse since last chemotherapy cycle, common CT manifestations of lung toxicity and CT lung findings unrelated to chemotherapy regimens ;was collected and subjected to statistical analysis. Results: Out of the total 204 patients, who already had anticancer therapy, 135 patients (66.2%) did not show any pulmonary abnormality on CT chest . 11 patients (5.4%) showed chemotherapy related pulmonary findings on CT. 46 patients (22.5%) showed CT chest findings which were incidental and irrelevant to chemotherapy.12 patients (5.9%) had both chemotherapy related pulmonary toxicity changes and incidental findings. The types of post chemotherapy CT lung changes were divided into ground-glass haze, ground glass haze with bronchiectasis, ground glass haze with septal thickening giving crazy paving appearance, patches of consolidation and reticular thickening. 10 patients had sole finding of ground glass haze only (43.5%) whereas 4 patient showed ground glass haze with bronchiectatic changes(17.4 %) and 2 patients depicted a crazy paving appearance (8.7%). Significant association (p=0.00) was noted between number of chemotherapy cycles and above mentioned CT lung findings .No positive correlation was present between time lapse since last chemotherapy cycle and these CT lung findings. Conclusion: Ground glass attenuation was found to be the most profounding feature of post chemotherapy lung CT changes.


2020 ◽  
pp. 084653711989932
Author(s):  
Sabeena Jalal ◽  
Hugue Ouellette ◽  
Zharmaine Ante ◽  
Peter Munk ◽  
Faisal Khosa ◽  
...  

Objective: To study the impact of 24/7/365 attending radiologist coverage on the turnaround time (TAT) of trauma and nontrauma cases in an emergency and trauma radiology department. Patients and Methods: This was a retrospective chart review in which TAT of patients coming to the emergency department between 2 periods: (1) December 1, 2012, to September 30, 2013, and (2) January 1, 2017, to January 30, 2018, and whose reports were read by an attending emergency and trauma radiologist was noted. Results: The 24/7/365 radiology coverage was associated with a significant reduction in TAT of computed tomography reports, and the time reduction was comparable between trauma and nontrauma cases. In adjusted models, the extension of radiology coverage was associated with an average of 7.83 hours reduction in overall TAT (95% confidence interval [CI]: 7.44-8.22) for reports related to trauma, in which 2.73 hours were due to reduction in completion to transcription time (TC; 95% CI: 2.53-2.93), and 5.10 hours were due to reduction in transcription to finalization time (TF; 95% CI: 4.75-5.44). For reports related to nontrauma cases, 24/7/365 coverage was associated with an average of 6.07 hours reduction in overall TAT (95% CI: 3.54-8.59), 2.91 hours reduction in TC (95% CI: 1.55-4.26), and 3.16 hours reduction in TF (95% CI: 0.90-5.42). Conclusion: Our pilot study demonstrates that the implementation of on-site 24/7/365 attending emergency radiology coverage at a tertiary care center was associated with a reduced TAT for trauma and nontrauma patients imaging studies. Although the magnitude and precision of estimates were slightly higher for trauma cases as compared to nontrauma cases. Trauma examinations stand to benefit the most from 24/7/365 attending level radiology coverage.


2020 ◽  
pp. 084653712090204
Author(s):  
Sabeena Jalal ◽  
Zharmaine Ante ◽  
Hugue Ouellette ◽  
Stephen Peters ◽  
Peter Munk ◽  
...  

Objective: To offer an evidence-based account of the effect of 24/7/365 attending radiologist coverage on the turnaround time (TAT) of trauma-related radiographs finalized within 48 hours of exam completion, drawing data from an emergency radiology department of a tertiary care hospital in Vancouver, British Columbia. Materials and Methods: This was a retrospective chart review, where TATs of imaging studies for a sample of trauma patients, who had visited the emergency department of the Vancouver General Hospital between two time periods, January 1 to September 30, 2013, and January 1 to September 30, 2017, were noted. Results: In models adjusted for patient’s age, sex, and seasonality, the 24/7/365 attending radiologist coverage was associated with an average of 19.1 (95% confidence interval [CI]: 18.7-19.4) hours of reduction in time from exam completion to report finalization by an attending radiologist. Approximately 11.3 (95% CI: 18.7-19.4) hours was due to reduction in time from exam completion to preliminary diagnosis of reports. When the impact of the increased number of radiology staff in 2017 was removed in the analysis, the overall TAT was reduced by 13.3 (95% CI: 13.0-13.6) hours and the time from exam completion to preliminary report was reduced by 7.8 (95% CI: 7.6-8.1) hours. Limitation: Since we have used a simple random sample (SRS) for this research, this study does not describe the burden of reports that are finalized in the emergency and trauma radiology department during the given time periods. Conclusion: Our pilot study demonstrates that the implementation of 24/7/365 attending radiology coverage significantly reduces TAT for finalized radiology reports of all modalities of trauma imaging studies in an emergency and trauma radiology department. Policy implication: This research serves the contemporary health-care administration, policymaking information needs by providing the evidence for significantly reduced TAT of finalized radiology reports from a Canadian perspective.


Author(s):  
Aliu Abdulhameed ◽  
Bello Sirajo Shiitu

Background: The cavity of the sphenoid sinus is a natural surgical route for accessing the middle cranial fossa. The extent of pneumatisation of the sphenoid is key to the preoperative evaluation of transsphenoidal, surgical procedures. Aim: To determine the prevalence and variations in the extent of pneumatisation of the body of the sphenoid bone using computerised tomography (CT). Methodology: Head CT scans of 323 patients were studied at the Radiology Department of the Usmanu Danfodiyo University Teaching Hospital, Sokoto, after ethical approval was granted. The CT scans were taken with a GE Bright Speed Multidetector Helical CT Scanner, and viewed with the Digital Imaging and Communication in Medicine (DICOM) viewer, powered by RadiAnt Version 4.2 software. Sphenoid sinus pneumatisation was defined by the anteroposterior extent of the sinus cavity of the sphenoid bone on sagittal images. The extent of pneumatisation was classified into four; conchal, presellar, sellar and postsellar, based on the position of the posterior wall of the cavity in relation to the anterior and posterior walls of the sellar turcica. Results: The predominant type of pneumatisation was the postsellar. The prevalence of the different types of pneumatisation were: postsellar, 50.2%, sellar, 32.0%, presellar, 14.7%, and conchal, 3.1%. There was no statistically significant relationship between pneumati- sation and sex (X2 = 0.585), or age (X2 = 0.076). Conclusion: With the prevalence of the different types of pneumatisation, a pre-operative CT assessment of the sphenoid sinus anatomy is essential, whenever the options for a transsphenoidal access to the sellar is being contemplated.


2021 ◽  
pp. 55-62
Author(s):  
Vishal Gupta ◽  
Swati Awasthi ◽  
Vaibhav Jaiswal ◽  
Mallika Gupta

OBJECTIVE The objective of this study was to study the role of ultrasound and computed tomography in evaluation of acute abdomen and to assess whether ultrasound alone will sufce in majority situations, so that radiation exposure may be minimized. MATERIALS AND METHODS This institutional review board approved prospective observational study comprised of 50 adult patients attending the emergency department for non-traumatic acute abdominal pain less than 3 days of duration. The radiological evaluation with US and CT scan (Non contrast and contrast enhanced) of abdomen was done at radiology department of Sharda hospital. The exclusion criteria were trauma and pregnancy. The equipments used were Ultrasound with color Doppler PHILIPS EPIQ 7G and CT Scan - GE Optima 660 - 128 slice CT Scanner with slice thickness of 0.6 mm. RESULTS The overall sensitivity of US was 74% and that of CT was 96.15% with insignicant difference (p value – 0.018). Also, the sensitivity of US compared to CT in diagnosing common etiologies of acute abdomen namely acute cholecystitis, acute appendicitis, intestinal obstruction, pancreatitis and ureteric calculi sensitivity did not differ signicantly. CT was necessary only in patients with retro-caecal appendicitis, bowel obstruction cases for dening the transition point and in patients with pancreatitis to obtain the CT Severity index. CONCLUSION We propose that US should remain the primary imaging modality in all patients of acute abdomen in order to prevent radiation exposure, especially as it was found to have a sensitivity comparable to CT, in majority of the clinical situations. Moreover, it is a more cost-effective investigation. Therefore, CT should be reserved only for the minority of clinical situations where US is signicantly inconclusive.


Sign in / Sign up

Export Citation Format

Share Document