scholarly journals Learning curve and period of experience required for the competent diagnosis of acute appendicitis using abdominal computed tomography: a prospective observational study

2017 ◽  
Vol 4 (4) ◽  
pp. 222-231
Author(s):  
Ju-Hyun Song ◽  
Hajin Cho ◽  
Jong-Hak Park ◽  
Sungwoo Moon ◽  
Joo Yeong Kim ◽  
...  
Keyword(s):  
Computed Tomography ◽  
Observational Study ◽  
Acute Appendicitis ◽  
Learning Curve ◽  
Prospective Observational Study ◽  
Abdominal Computed Tomography

scholarly journals Does dual-energy abdominal computed tomography increase the radiation dose to patients: a prospective observational study

2021 ◽  
Vol 86 (1) ◽  
pp. 208-216
Author(s):  
Dilip John ◽  
Athira R. ◽  
Swathigha Selvaraj ◽  
Rupa Renganathan ◽  
Kannan Gunasekaran ◽  
...  
Keyword(s):  
Computed Tomography ◽  
Radiation Dose ◽  
Observational Study ◽  
Prospective Observational Study ◽  
Dual Energy ◽  
Abdominal Computed Tomography

Mastoiditis in children: a prospective, observational study comparing clinical presentation, microbiology, computed tomography, surgical findings and histology

2007 ◽  
Vol 167 (5) ◽  
pp. 541-548 ◽  
Author(s):  
Jody Stähelin-Massik ◽  
Mihael Podvinec ◽  
Jens Jakscha ◽  
Othmar N. Rüst ◽  
Johannes Greisser ◽  
...  
Keyword(s):  
Computed Tomography ◽  
Observational Study ◽  
Prospective Observational Study ◽  
Clinical Presentation

scholarly journals Learning Curve for the Acquisition of 20 Standard Two-Dimensional Images in Advanced Perioperative Transesophageal Echocardiography: A Prospective Observational Study

2021 ◽  
Author(s):  
Prasert Sawasdiwipachai ◽  
Sasithorn Thanasriphakdeekul ◽  
Vithaya Chithiraphan ◽  
Kasana Raksamani ◽  
Kamheang Vacharaksa
Keyword(s):  
Observational Study ◽  
Learning Curve ◽  
Transesophageal Echocardiography ◽  
Success Rate ◽  
Prospective Observational Study ◽  
Two Dimensional ◽  
Trainee Group ◽  
Short Course ◽  
Thoracic Anesthesia ◽  
Intraoperative Transesophageal Echocardiography

Abstract Background Learning to perform intraoperative transesophageal echocardiography takes time and practice. We aimed to determine the cumulative success rate in the first 20 intraoperative transesophageal echocardiography cases performed by trainee anesthesiologists with no transesophageal echocardiography experience. Methods This prospective observational study included nine anesthesiologists (four cardiovascular and thoracic anesthesia fellows and five short-course perioperative intraoperative transesophageal echocardiography trainees). Overall, 180 studies self-performed by the trainees were reviewed by certified reviewers. A study was considered successful when at least 15 qualified images were collected within 30 minutes. The cumulative success of each trainee was used as a surrogate of a basic two-dimensional intraoperative transesophageal echocardiography learning curve. Results The participants comprised three male and six female anesthesiologists aged 29–43 years with 2–13 years of work experience. Most studies (146/180, 81.11%) were completed within 30 minutes, and the cumulative success rate was 70–90% (average 82.78 ± 6.71%). The average cumulative success rate in the short-course group (85 ± 7.07%) was higher than that in the official cardiovascular and thoracic fellow trainee group (80 ± 7.07%). The recommended caseload for a 75–80% success rate was 14–18 cases (95% confidence interval, 0.675–0.969). Conclusions We recommended a 14–18 caseload for a target success rate of 75–80% in studies performed by trainees with no previous experience. Our findings will enable the development of programs to train anesthesiologists in intraoperative transesophageal echocardiography.

Abdominal Computed Tomography in the Evaluation of Acute and Perforated Appendicitis in the Community Setting

2007 ◽  
Vol 73 (10) ◽  
pp. 1002-1005 ◽  
Author(s):  
D.O. Vu Huynh ◽  
Fariborz Lalezarzadeh ◽  
Shokry Lawandy ◽  
David T. Wong ◽  
Victor C. Joe
Keyword(s):  
Computed Tomography ◽  
Acute Appendicitis ◽  
Predictive Value ◽  
Perforated Appendicitis ◽  
Community Setting ◽  
Diagnostic Value ◽  
Academic Community ◽  
Negative Appendectomy ◽  
Community Based ◽  
Abdominal Computed Tomography

Several studies report sensitivity and specificity of abdominal computed tomography scans (CT) for the evaluation of acute appendicitis as high as 98 per cent. Despite increased utilization of CT, the rate of negative appendectomy has remained constant at 10 to 20 per cent. The objective of this study was to assess the effectiveness of CT in the evaluation of acute and perforated appendicitis in an academic community-based setting. A retrospective review of 550 patient charts with International Classification of Diseases-9 (ICD-9) codes for acute and perforated appendicitis from January 2002 to October 2005 was performed. Sensitivity of CT was 87 per cent with a positive predictive value of 92 per cent. Specificity was 42 per cent with a negative predictive value of 29 per cent. Negative appendectomy rates were similar with or without CT (11% vs 13%, respectively). Our data suggests that CT used liberally in everyday practice in a community-based setting to evaluate acute appendicitis may not have as strong of a diagnostic value as those used in protocol-driven research studies. Further prospective studies are needed to formulate criteria to better delineate the role of CT in the evaluation of acute appendicitis.

The Use of Abdominal Computed Tomography Imaging Technology in the Treatment of Surgical Acute Abdominal Perforation

2020 ◽  
Vol 10 (9) ◽  
pp. 2130-2135
Author(s):  
Yong Liu ◽  
Tuo Su ◽  
Ping Wei ◽  
Wei Han ◽  
Zhili Ji
Keyword(s):  
Computed Tomography ◽  
Acute Appendicitis ◽  
Diagnostic Value ◽  
Imaging Features ◽  
Abdominal Ct ◽  
Imaging Technology ◽  
Abdominal Computed Tomography ◽  
Specific Sign ◽  
Suspected Acute Appendicitis ◽  
Image Performance

Objective: The objective of this study is to explore the imaging features of abdominal Computed Tomography (CT) in patients with surgical acute abdominal perforation and to improve the diagnostic ability of perforated acute appendicitis (PAA). Method: Patients with suspected acute appendicitis and abdominal pain are selected as the study objects. According to the surgical records and pathological results, the patients are divided into PAA group and nonperforated acute appendicitis (NPAA) group. All patients are examined by abdominal CT. Postprocessing reconstruction technology such as multiple planar reconstruction (MPR) algorithm and curved planar reformat (CPR) algorithm are used as assistance to display the appendix, analyze and compare the images, observe the image performance of abdominal CT, and measure the diameter of the appendix. Results: The incidence of PAA specific signs (i.e. cellulitis around the appendix, abscess around the appendix, enhancement defect of the appendix wall, air accumulation outside the appendix cavity, fecal stone outside the appendix cavity) in PAA group is significantly higher than that in NPAA group (P < 0.05). Appearance of at least one specific sign for the diagnosis of PAA is 95.65%, the specificity is 92.59%, and the accuracy is 94.00%. The diameter of appendix in PAA group is significantly larger than that in NPAA group (P < 0.05). Compared with the diagnosis of simple specific signs, the specificity and accuracy of the combination of appendiceal diameter and specific signs in the diagnosis of PAA have been improved. Conclusion: With the help of MPR algorithm and CPR algorithm, abdominal CT imaging technology can accurately identify PAA and NPAA, which has important diagnostic value.

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