Presentation on theme: "Quality Management in Diagnostic Imaging"— Presentation transcript:
1 Quality Management in Diagnostic Imaging Quality Control in Diagnostic ImagingV.G.WimalasenaPrincipalSchool of Radiography
2 Need for quality management in Diagnostic imaging Diagnostic Imaging is a multi-step process by which information concerning patient anatomy and physiology is gathered and displayed with the use of modern technology.There are various sources of variability in both human factors and equipment factors that can produce subquality images if not properly controlled.
3 …..Need for quality management in Radiology Sub quality images can result inDecreased accuracy of image interpretationRepeat exposures thatIncrease patient doseIncrease department costThis in turn can result in,Decreased customer (physicians, patients, employees…) satisfactionLost business & revenue
4 The purpose of a quality management programme To Control or minimize the errors in following variables as much as possible:EquipmentImage receptorProcessingViewing conditionsCompetency of the technologistSupport staffInterpreter
5 Levels of quality of patient care & diagnostic images Considered in 3 levelsExpected quality:The level expected by the customer . This may be influenced by outside factors such as what he has heard from the others. Imaging professionals have least impact on this.Perceived quality:The customer’s perception of the product or service. It is highly subjective. How well the imaging professional performs his respective responsibilities will have the greatest impact on this.
6 Levels of quality of patient care & diagnostic images Actual quality:This is the level of quality judged by using statistical data and all factors that can influence the;Quality of the image.Accuracy of the diagnosisTimeliness of report to the physicianIt can compare the quality of the product orservice with that of competitor.
7 Quality assurance (QA) ? QA is an all-encompassing management programme used to ensure excellence in healthcare through the systematic collection and evaluation of data.The primary objective is the enhancement of patient care.This includes:Patient selection parameters and schedulingManagement techniquesDepartmental policies & proceduresTechnical effectiveness & efficiencyIn-service educationImage interpretation & timeliness of reportsThe main emphasis is on the human factors that can lead to variations in quality care
8 Quality assessment?Refers to the measurement of the level of quality at some point in time with no effort to change or improve the level of care.
9 Quality Control (QC)?QC is the part of the QA programme that deals with techniques used in monitoring and maintenance of the technical elements of the systems that affect the quality of the image.It deals with instrumentation and equipment.A QC programme includes three levels of testing:Noninvasive and simpleNoninvasive and complexInvasive and complex
10 QC testing levelsNoninvasive and simple – can be performed by any technologistNoninvasive and complex – require a technologist specially trained in QC proceduresInvasive and complex – involves some disassembly of the equipment and are performed by engineers of physicists
11 Types of QC tests…Acceptance testing :- is performed on new equipment or equipment that has undergone major repairs :To demonstrate that it is performing within the manufacturer’s specifications and criteria.To detect any defects that may exist.To establish the baseline performance that may be used as reference point in future testing
12 Types of QC tests…Routine performance evaluations :– are specific tests performed on the equipment in use after a certain period of time;To verify that the equipment is performing within previously accepted standards.To diagnose any changes in performance before becoming radiographically apparent.
13 Types of QC testsError correction tests:- are tests performed on malfunctioning equipment;To evaluate the equipmentTo verify the correct cause of the malfunctionso that proper repair can be made.
14 Continuous quality improvement This is the newest term used for the concept of QA/Quality control programme .It means that instead of just ensuring and maintaining quality, it continually improves quality by focusing on improving the system or process in which individual workers function rather than on the individuals themselves.Every employee should be actively involved in CQI for the programme to be successful.