SCATTERED X-RAY ENERGY DATA FROM INTEGRATED MULTI-FILTER PERSONAL DOSEMETERS WORN BY INTERVENTIONAL RADIOLOGY STAFF

BACKGROUND Radiology now plays a major role to diagnose, monitoring, and management of several diseases; numerous diagnostic and interventional radiology procedures involve exposure to ionizing radiation. Radiology now plays a major role to diagnose, monitoring, and management of several diseases; numerous diagnostic and interventional radiology procedures involve exposure to ionizing radiation. OBJECTIVE This study aimed to discover and compare the awareness level of radiation doses, protection issues, and risks among radiology staff in Jeddah hospitals. METHODS A cross-sectional survey containing 25 questions on personal information and various aspects of radiation exposure doses and risks was designed using an online survey tool and the link was emailed to all radiology staff in eight tertiary hospitals in Jeddah. The authors were excluded from the study. A P-value of < .05 was used to identify statistical significance. All analyses were performed using SPSS, version 21. RESULTS Out of 156 participants the majority 151 (96.8%) had poor knowledge score, where the mean scores were 2.4±1.3 for doses knowledge, 2.1±1.1for cancer risks knowledge, 2.3±0.6 for general information, and 6.7±1.9 for the total score. Only 34.6% of the participants were aware of the dosage of a single-view chest x-ray, and 9.0% chose the right answer for the approximate effective dose received by a patient in a two-view. 42.9% were able to know the correct dose of CT abdomen single phase. There is a significant underestimation of cancer risk of CT studies especially for CT abdomen where only 23.7% knew the right risk. A p-value of <0.05 was used to identify statistical significance. No significant difference of knowledge score was detected regarding gender (P =.2) or work position (P=.66). CONCLUSIONS Our survey results show considerable inadequate knowledge in all groups without exception. We recommended a conscientious effort to deliver more solid education and obtain more knowledge in these matters and providing periodic training courses to teach how to minimize the dose of radiation and to avoid risk related. CLINICALTRIAL not applicable

Download Full-text

The Nature of the Compact Object in the Hard X-Ray Source 4U2206+54

International Astronomical Union Colloquium ◽

10.1017/s0252921100152546 ◽

2004 ◽

Vol 194 ◽

pp. 208-208

Author(s):

J. M. Torrejón ◽

I. Kreykenbohni ◽

A. Orr ◽

L. Titarchuk ◽

I. Negueruela

Keyword(s):

Neutron Star ◽

Accretion Disk ◽

Compact Object ◽

High Energy ◽

Energy Data ◽

X Ray ◽

Hot Plasma ◽

Cyclotron Line ◽

First Time

We present an analysis of archival RXTE and BeppoSAX data of the X-ray source 4U2206+54. For the first time, high energy data (≥ 30 keV) is analyzed. The data is well described by comptonization models in which seed photons with temperatures between 1.1 keV arid 1.5 keV are comptonized by a hot plasma at 50 keV thereby producing a hard tail which extends up to 100 keV. From luminosity arguments it is shown that the area of the soft photons source must be small (r ≈ 1 km) and that the presence of an accretion disk in this system is unlikely. Here we report on the possible existence of a cyclotron line around 30 keV . The presence of a neutron star in the system is strongly favored by the available data.

Download Full-text

[P063] Value-based X-ray physics – A novel organizational model for medical physicists working in diagnostic and interventional radiology

Physica Medica ◽

10.1016/j.ejmp.2018.06.386 ◽

2018 ◽

Vol 52 ◽

pp. 118

Author(s):

Albert Sundvall ◽

Patrik Nowik ◽

Robert Bujila ◽

Johan Sjöberg

Keyword(s):

Interventional Radiology ◽

Organizational Model ◽

X Ray ◽

Medical Physicists

Download Full-text

Effect of Real-Time Radiation Dose Feedback on Pediatric Interventional Radiology Staff Radiation Exposure

Journal of Vascular and Interventional Radiology ◽

10.1016/j.jvir.2013.08.015 ◽

2014 ◽

Vol 25 (1) ◽

pp. 119-126 ◽

Cited By ~ 20

Author(s):

John Racadio ◽

Rami Nachabe ◽

Bart Carelsen ◽

Judy Racadio ◽

Nicole Hilvert ◽

...

Keyword(s):

Interventional Radiology ◽

Radiation Dose ◽

Radiation Exposure ◽

Real Time ◽

Radiology Staff

Download Full-text

An Approach for Online Determining the Entrance Surface Air Kerma (ESAK) in Digital Radiology

10.21203/rs.3.rs-865106/v1 ◽

2021 ◽

Author(s):

Ibrahim Idris Suliman

Keyword(s):

Interventional Radiology ◽

Digital Imaging ◽

Digital Information ◽

Patient Exposure ◽

Digital Radiology ◽

X Ray ◽

Air Kerma ◽

Dicom Header ◽

Area Product ◽

Entrance Surface Air Kerma

Abstract An online method is proposed to determine the entrance surface air kerma (ESAK) in digital radiology from console-displayed kerma area product (PKA) data. ESAK values were calculated from X-ray tube outputs and patient exposure factors across five X-ray examinations. The corresponding PKAvalues were taken from the Digital Imaging and Communications in Medicine (DICOM) header. Using linear regression between ESAK and values, the slope and intercept coefficients for each type of X-ray equipment and procedure were determined. The coefficient to determine ESAK from ranged from 59% for a posteroanterior chest to 88% for anteroposterior lumbar spine view X-ray procedures. The results demonstrated the possibility of online estimates of ESAK from a console that displayed using readily available digital information in radiology. The results may have important implications in interventional radiology, where ESAK values are crucial for preventing skin injuries due to prolonged fluoroscopy times.

Download Full-text

General radiographic patient dose monitoring using conformity test data

International Research Journal of Engineering IT & Scientific Research ◽

10.21744/irjeis.v7n6.1953 ◽

2021 ◽

Vol 7 (6) ◽

pp. 219-224

Author(s):

I Ketut Putra ◽

Gusti Agung Ayu Ratnawati ◽

Gusti Ngurah Sutapa

Keyword(s):

Interventional Radiology ◽

Radiation Dose ◽

Test Data ◽

Medical Practitioners ◽

X Ray ◽

Patient Protection ◽

Dose Monitoring ◽

Test Parameters ◽

Medical Exposure ◽

Entrance Surface Air Kerma

Currently, the Nuclear Energy Supervisory Agency (BAPETEN) is actively guiding users or license holders related to patient protection against radiation hazards or often referred to as radiation protection and safety on medical exposure. Protection against medical exposure became a big issue when the mandatory compliance test on X-ray equipment for diagnostic and interventional radiology was introduced. In addition, license holders through their medical practitioners are also required to use the level of medical exposure guidelines. While PERKA BAPETEN No. 9, 2011 concerning the Suitability Test of Diagnostic and Interventional Radiology X-Ray device, states that one of the test parameters that directly affect the patient's radiation dose and determine the feasibility of operating the X-Ray device to the patient is information on the dose or rate of radiation dose received by the patient. Monitoring doses with Entrance Surface Air Kerma (ESAK) or what is often referred to as ESD (entrance surface dose) using suitability conformity test data starting from 50,60,70,80,90 and 100 kVp with 20 mAs at SID 100 meters. The results of the research on the value of ESAK was 0.049 mGy, an ESAK value that still met the national I-DRL value from BAPETEN Regulation No. 1211/K/V/2021.

Download Full-text

Experience of Radiology Technologists Performing Peripherally Inserted Central Catheters (PICC)

The Arab Journal of Interventional Radiology ◽

10.1055/s-0041-1739303 ◽

2021 ◽

Author(s):

I. Aljediea ◽

M. Alshehri ◽

K. Alenazi ◽

A. Memesh ◽

M. Fleet

Keyword(s):

Interventional Radiology ◽

Success Rate ◽

Ultrasound Guidance ◽

Review Process ◽

Peripherally Inserted Central Catheters ◽

X Ray ◽

Venous Puncture ◽

Local Experience ◽

Chest X Ray ◽

Central Catheters

Abstract Purpose We conducted this study to review our local experience of performing peripherally inserted central catheters by interventional radiology technologists. Materials and Methods This is a retrospective study of peripherally inserted central catheters performed by interventional radiology technologists. These procedures were performed using ultrasound guidance for venous puncture and fluoroscopy or electrocardiography guidance followed by chest X-ray to confirm tip location. Results We reviewed all peripherally inserted central catheters performed in interventional radiology between May 2017 and July 2020. The review process included the success rate, number of venous puncture attempts, method of guidance, procedure time, fluoroscopy time, catheter duration to removal, and complications. Conclusion Interventional radiology technologists can perform peripherally inserted central catheters safely with high success rate. Extending interventional radiology technologists' role to perform peripherally inserted central catheters allow interventional radiologists to do more complex procedures. This enhances the workflow, increases the interventional radiology team efficiency, and improves the waiting time.

Download Full-text