A New CT Perfusion Analysis Algorithm without Deconvolution: FiTT
Hiroshi Iimura and Atsushi Senoo
Article Type: Original Article | First Published: September 30, 2021
We propose a new CT perfusion analysis algorithm without deconvolution: Theoretically calculating the time-enhancement curve (TEC) under various perfusion conditions, finding a theoretical TEC that best fits the observed TEC, and using the theoretical TEC’s perfusion parameters as the estimations for the observation point (FiTT). The FiTT analysis procedure was as follows: First, the TEC of the arterial input function (AIF) was fitted to the gamma distribution function. Next, we defined the re...
Assessment of Chest X-Ray Utilization for the Evaluation of Non-Traumatic Chest Pain in an Academic Emergency Department
Garrett Rucker, Ricci Kalayanamitra, MD and Ravindra Gopaul, MD
Article Type: Original Research | First Published: June 30, 2021
Overutilization of chest X-rays (CXR) is costly, inefficient and results in increased radiation exposure. Several studies have proposed clinical decision rules (CDR) for chest X-ray utilization in non-traumatic chest pain patients presenting to the Emergency Department (ED). However, CDRs are often not one size fits all and may differ based on population variability. The purpose of this study is to 1) Evaluate CXR utilization among ED patients suspected of acute coronary syndrome (ACS) presentin...
The Most Accurate Ultrasonographic Finding for Diagnosis of Lower-Extremity Arterial Disease in Patients with Critical Limb Ischemia
Tanapong Panpikoon, Jiemjit Tapaneeyakorn, Tharintorn Treesit and Chinnarat Bua-ngam
Article Type: Original Article | First Published: March 13, 2021
To search for the most accurate duplex ultrasound finding for diagnosis of arterial stenosis and occlusion in patients with critical limb ischemia. Combining the findings from B-mode with color and spectral PW Doppler ultrasound showed the higher accuracy than using one finding, with increased sensitivity and negative predictive value. Combined > 50% decrease in diameter seen on B-mode ultrasound with PSV ratio ≥ twofold, relative to the proximal segment, showed the highest accuracy for diagno...
X-Ray Film Reject Analysis in Radiology Departments of Port Sudan Hospitals
Fathi Awad, Fathalrahman Al Naem, Afrah Gemea, Nehad Wedaa, Zeinab Mohammed and Samah Tag Elser
Article Type: Original Paper | First Published: January 21, 2021
Patients normally go through repeated X-ray imaging procedures following the initial imaging exams are rejected because of poor image quality. Repeated images of radiological examinations increase the risk of radiation exposure of the patients, wastes medical resource, and reduce the quality of services of radiology department. Patients normally go through repeated X-ray imaging procedures following the initial imaging exams are rejected because of poor image quality. Repeated images of radiolog...