background and objective: laboratory errors are one of the major factors that affect the diagnosis, prognosis, treatment and monitoring in patients.the objective of study is to evaluate the frequency and type of errors in different phases of testing at the pathology department of the shalamar hospital, lahore and to evaluate the causes of errors. methods: this observational study was carried o...

conclusions it can be concluded that electronic health records lead to a reduction in medication errors and increase patient safety. background medication errors are the most common medical errors, and are one of the major challenges threatening the healthcare system, which is inherently susceptible to error. objectives in this study, we aimed to compare the occurrence of errors between two met...

background: over recent decades, modern protocols of external beam radio¬therapy and radiation techniques such as intensity-modulated radiotherapy (imrt) have been developed. these methods are extremely sensitive to errors in treatment delivery, so that it is essential to apply a high resolution 3d dosimetry system that has high sensitivity and is capable of measuring and verifying the complex ...

PurposeThe robustness against setup and motion uncertainties of gated four-dimensional restricted robust optimization (4DRRO) was investigated for hypofractionated carbon ion radiotherapy (CIRT) lung tumors.MethodsCIRT plans 9 patients were optimized using 4DRRO strategy with 3 mm errors, 3% density errors breathing phases related to the gate window. The prescription 60 Gy(RBE) in 4 fractions. ...

The checking of monitor unit calculations is recognized as a vital component of quality assurance in radiotherapy. Using straightforward but detailed computer-based verification calculations it is possible to achieve a precision of 1% when compared with a three-dimensional (3D) treatment planning system monitor unit calculation. The method is sufficiently sensitive to identify significant error...

The purpose of this study is to simulate random and systematic RapidArc delivery errors for external beam prostate radiotherapy plans in order to determine the dose sensitivity for each error type. Ten prostate plans were created with a single 360° arc. The DICOM files for these treatment plans were then imported into an in-house computer program that introduced delivery errors. Random and syst...

Real-time tracking of moving tumors is one of today’s challenges in radiation therapy. This work investigates the tracking performance of VERO, a novel treatment device with gimbaled linear accelerator, especially designed for four dimensional image guided radiotherapy. It is found that the significant impact of organ motion on dose distribution can be overcome by combining a polynomial predict...