Main Auditorium, King Fahad Medical City, KSA - smps.org.sa · 9th Saudi Medical Physics Society Conference Main Auditorium, King Fahad Medical City, KSA 07-09 November 2017 ( 18-20

9th Saudi Medical Physics Society ConferenceMain Auditorium, King Fahad Medical City, KSA

07-09 November 2017 ( 18-20 Safar 1439)

ENDORSED BY:

Future Proton Therapy Center, Comprehensive Cancer Center and National

Neuroscience Institute Buildings

MESSAGE

On behalf of the Conference Committee, I am honored and delighted to welcome you to the

KFMC International Conference on Physics in Medicine. This meeting is an opportunity to meet

some of the leading experts in healthcare for scientific discussion and to share experience on

the applications of physics and engineering in the medical field.

This conference is a continuation to the successful annual meetings organized in collaboration

with the Saudi Medical Physics Society (SMPS), which attracts over 500 scientists, engineers,

professors, students, and healthcare professionals. It has been successfully held in different

cities around the kingdom after the first conference that was held at King Fahad Medical City

(KFMC) back in 2006. Now in 2017, it is back where it all started.

KFMC conference on physics in medicine provides a unique opportunity for all participants to

exchange ideas and share their knowledge and experience. In addition to the scientific

program, I hope you will get to now KFMC and enjoy your stay. November is an excellent time

to come to Riyadh, you will be able to enjoy the landmarks and attractions of the city in a very

nice weather.

I would like to take this opportunity to thank the organizing and scientific program committees

for their time and effort to bring the conference a success. I would also express my heartfelt

gratitude to all the sponsors for their support that made this meeting possible.

Dr. Mukhtar AlShanqity, MSc, PhD, DABR

Chairman of organizing Committee

Head of Medical Physicists

King Fahad Medical City

Riyadh, Saudi Arabia

Future National Neuroscience Institute Building

MESSAGE

I take this opportunity to thank King Fahad Medical City (KFMC) for being a partner of Saudi

Medical Physics Society (SMPS) in promoting the medical physics profession. Today's

conference is another collaborative effort between KFMC and SMPS for its 9th Saudi Medical

Physics Conference in developing awareness of the medical physicists' endeavor to provide

services that ensure patient safety and quality health care in using radiation in medicine.

The theme of this conference is bridging the relationship between diagnosis and treatment.

With the development of new and hybrid technologies in both areas medical physicists are

challenged in improving services from conservative to ultra modern. This conference provides

an excellent venue for introducing new frontiers to young medical physicists and sharing of

experiences for consultant medical physicists.

As this very important event coincides with the celebration of the International Day of Medical

Physics with the theme " Medical Physics: Providing a Holistic Approach to Women Patients

and Women Staff Safety in Radiation Medicine" we join all the medical physicists around the

world for honoring the contributions of women medical physicists in providing quality medical

physics services from diagnosis to treatment.

I wish each one of you a fruitful three days of participation in the conference and bring home to

your institution the lessons and experiences learned from this conference. Saudi Arabia, being

the country with the most number of medical physicists in the Middle East region, let us

continue to strive to be more competitive internationally.

Abdalla N. Al-Haj, PhD, FIPEM, CSci, MSRP

President, Saudi Medical Physics Society

Future Comprehensive Cancer Center Building

COURSE OBJECTIVE

1. Provide education on the different applications of physics in medicine.

2. Discuss the emerging technologies and applications of radiation in diagnostic X-ray

imaging, nuclear medicine and radiation therapy.

3. Apply radiation safety practices in the use of radiation in medicine for quality medical

physics services in healthcare.

4. Identify gaps on safety and quality in the use of radiation in medicine.

5. Discuss current trends , issues and practices on uses of radiation from diagnosis to

treatment

DESIRED RESULTS

1. Increased awareness of the applications of physics in medicine.

2. Provision of interactive forum for discussion of technical advances and research on

application of physics in medicine.

3. Increased capability on safe uses of radiation in diagnosis and treatment to improve health

care services.

4. Bridge gaps on the uses of radiation from diagnose to treatment.

Future Crescent Building

SCIENTIFIC COMMITTEE ORGANIZING COMMITTEE

Dr. Ahmed Outif

Consultant Medical Physicist

Dr. Abdullah Abuhaimed

Assistant professor

Dr. Awad AlZahrani

Consultant

Dr. Faris Al Zahrani

Consultant

Ms. Joelle Amiouni

Medical Physicist

Mr. Rami Al Harbi

Medical Physicist

Mr. Abdullah Al Qarni

Medical Physicist

Dr. Mukhtar AlShanqity


Dr. Abousleh El Awadi


Ms. Laura Stanciu

Medical Physicist

Mr. Hosam Allazkani

Medical Physicist

Mr. Tariq Al Kwaitim

CME Coordinator

Mr. Melchor Malavi

Committee Secretary

Ms. Jaina A. Abdulkadil

Medical Conference Registrar

Future Proton Therapy Center

CONFERENCE SPEAKERS



Radiation Oncology Department


Riyadh, KSA

Dr. Renato Padovani

Director & Consultant Medical Physicist

International Centre for Theoretical Physics

Trieste, Italy

Dr. Hussain AlHussain

Consultant Radiation Oncologist



Riyadh, KSA

Dr. Awad Al Zahrani

Consultant

National Center for Radiation Protection

King Abdullah City for Atomic & Renewable Energy

(KACARE)

Dr. Faris Mayia




Riyadh, KSA

Dr. Ahmad Outif


Security Forces Hospital

Riyadh, KSA

Dr. Wamied Abdulrahman

Chief/Consultant Radiation Oncology Physicist

Department of Radiation Oncology

King Fahad Specialist Hospital

Dammam, KSA

Proton Therapy Center Interior

CONFERENCE SPEAKERS

Dr. Abdullah H. Jamea


Assistant Professor

Radiology Department College of Medicine

King Khalid University Hospital

Riyadh, KSA

Dr. Abdullah A. Abuhaimed

Assistant Professor

National Center for Applied Physics

King Abdulaziz City for Science and

Technology (KACST)

Dr. Yasser Bayoumi

Consultant Radiation Oncologist

Director of Radiation Oncology Department

Residency Program

King Fahad Medical City, Riyadh, KSA

Dr. Moamen Aly




Riyadh, KSA

Dr. Mohamed Zaghloul

Chairman


Children's Cancer Hospital

Cairo, Egypt

Dr. Shanker Raja

Consultant

Nuclear Medicine

Medical Imaging Administration


Dr. Mamdoh AlGathami



National Guard Hospital

Riyadh, KSA

Comprehensive Cancer Center Interior

CONFERENCE SPEAKERS

Dr. Reham El Gendy

Medical Physicist



Riyadh, KSA

Ms. Aida Lobriguito

Medical Physicist



Riyadh, KSA

Mr. Mansour Bukhari

Medical Physicist



Riyadh, KSA

Dr. Fariz AlZahrani

Ministry of Interior

Riyadh, KSA

Comprehensive Cancer Center Interior

SESSION CHAIRMAN

Dr. Faris Mayia




Dr. Moamen Aly




Dr. Eyad Al Saeed

Consultant and Chairman


King Khaled University Hospital

Dr. Reham Al Gendy

Medical Physicist



Ms. Aida Lobriguito

Medical Physicist



Mr. Asif Iqbal

Medical Physicist



Mr. Mansour Bukhari

Medical Physicist



Mr. Mohamad Al Harbi

Medical Physicist



Future Cochlear Implant Building

DAY 1 (November 07, 2017)

TIME TOPICS SPEAKERS

07:30 – 08:00 Registration

SESSION 1 Session Chairman Dr. Faris Mayia

08:00 - 08:30 The Role of Physics in Healthcare Dr. Mukhtar AlShanqity

08:30 - 09:30

The Medical Physicist According to the New European

Union Directive on the Safety Use of Ionizing Radiation

in Medicine

Dr. Renato Padovani

09:30 - 10:00 Break

SESSION 2 Session Chairman Dr. Moamen Aly

10:00 - 10:30 Proton Therapy: Medical Aspects Dr. Hussain AlHussain

10:30 - 11:30 Dosimetry of CT Advanced TechnologyDr. Abdullah A.

Abuhaimed

11:30 - 12:00

Use of Linac Manufacturer Data in Commissioning

Treatment Planning Systems: King Fahad Specialist

Hospital Experience

Dr. Wamied

Abdulrahman

12:00 - 13:30 Prayer and Lunch

SESSION 3 Session Chairman Dr. Reham ElGendy

13:30 - 14:30 Particle Therapy in Kingdom of Saudi Arabia Dr. Ahmad Outif

14:30 - 15:00 Innovating to Meet the Demand Dr. Faris Maya

15:00 - 15:30 Break

SESSION 4 Session Chairman Ms. Aida Lobriguito

15:30 - 16:30

Treatment Planning Evaluation of Volumetric

Modulated Arc Therapy (VMAT) for Craniospinal

Irradiation (CSI)

Ms. Tagreed Alawi

Development and Evaluation of an Ultrasound

Mammographic Density PhantomMs. Majd AlHarthi

The Potential Use of a Plastic Scintillator in Quality

Assurance in Proton Therapy

Dr. Mansour

Almurayshid

Individualization of Radiotherapy Dose Fractionation

Based on the Patient’s Treatment Plan Ms. Weam Alnojiadi

SCIENTIFIC PROGRAM

Opening Ceremony at 09:30 - 09:45AM

NOTES



SESSION 5 Session Chairman Mr. Asif Iqbal

08:00 - 08:30

Impact of AI (Artificial Intelligence) and

Deeplearning in Medicine, Medical Imaging and

Radiotherapy

Dr. Shanker Raja

08:30 - 09:30 MRI Diffusion Imaging and Tractography Dr. Abdullah Jamea

09:30 - 10:00 Break

SESSION 6 Session Chairman Dr. Eyad Al Saeed

10:00 - 10:30 Intensity Modulated Therapy for Breast Cancer Dr. Mohamed Zaghloul

10:30 - 11:30New ICRP Recommendations on Assessment

and Use of Diagnostic Reference LevelsDr. Renato Padovani

11:30 - 12:00Education, Training, Certification and

Credentialing of Medical PhysicistsMs. Aida Lobriguito

12:00 - 13:30 Lunch

SESSION 7 Session Chairman Mr. Mohamad Al Harbi

13:30 - 14:30 Shielding Design in Proton Facilities Dr. Ahmad Outif

14:30 - 15:00 Break

15:00 - 16:30 Eye Lens Dosimetry Workshop Dr. Renato Padovani

SCIENTIFIC PROGRAM

NOTES



SESSION 8 Session Chairman Ms. Aida Lobriguito

08:00 - 08:30 Personalized Medicine Dr. Yasser Bayoumi

08:30 - 09:30 Recent Advances in CyberKnife Dr. Mamdouh AlGathami

09:30 - 10:00 Break

SESSION 9 Session Chairman Mr. Mansour Bukhari

10:00 - 10:30

Radiation Protection & Legislations in Saudi

Arabia King Abdullah City for Atomic and

Renewable Energy (KACARE)

Dr. Awad AlZahrani

10:30 - 11:30Staff Exposure Monitoring in Interventional

Radiology Dr. Renato Padovani

11:30 - 12:00The Role of Public Security in Dealing with

Radioactive MaterialsDr. Faris AlZahrani

12:00 - 13:30 Lunch

13:30 - 16:30

Workshop I

Patient Specific Dosimetry

Dr. Moamen Aly

Dr. Reham Al Gendy

Workshop II

Brachytherapy Dosimetry


Mr. Asif Iqbal

Workshop III

Decontamination During Radiological

Emergencies

Dr. Khalid Al Safi

Ms. Aida Lobriguito

Mr. Mansour Bukhari

16:30 – 17:00 Closing and Certificate Distribution Dr. Mukhtar Al Shanqity

SCIENTIFIC PROGRAM

NOTES

NOTES

ABSTRACT

The potential use of a plastic scintillator in quality assurance in proton therapy

Mansour Almurayshid 1,2, Yusuf Helo2, Andrzej Kacperek3, Jennifer Griffiths2, Jem Hebden2

and Adam Gibson2

1. National Center for Nuclear Technology, King Abdulaziz City for Science and Technology

– KACST, Saudi Arabia

2. Medical Physics and Biomedical Engineering, University College London, UK

3. National Eye Proton Therapy Centre, Clatterbridge Cancer Centre, UK

METHOD: Plastic scintillators emit visible light when irradiated. They are inexpensive,

robust, have tissue-equivalent density and can easily be shaped and fabricated. RESULTS:

We evaluate a BC-408 plastic scintillator (Saint-Gobain Crystal Corporation, USA), chosen

due to its high scintillation efficiency, optical transparency and large volume

(20 cm×20cm×10 cm), imaged with a commercial Nikon D7100 camera as a quality

assurance tool in proton therapy. The whole 2D dose distribution was then obtained in a

single image (Fig 1a). Possible optical artefacts, which could affect the signal, were

investigated and taken in conisation when needed. The scintillation responses were

reproducible to within 0.55%, linear with dose, and independent of dose rate. However, there

was a reduction in the light intensity in the Bragg peak region because the protons’ high

linear energy transfer (LET) leads to quenching where less light is produced than expected.

We corrected the measured scintillation light distribution for quenching using Birks’ equation.

LET was obtained produced by Geant4 as a function of depth and was combined with the

measured scintillation light to calculate Birks’ constant as 0.15 ± 0.02 mm MeV-1. Ideal and

quenched distributions were then simulated by Geant4 and used to generate a correction

which was applied to the measured distribution to produce the corrected scintillation output

(Fig 1b).

ABSTRACT

CONCLUSION: This approach offers effective correction for quenching, and allows

rapid, convenient, routine imaging of the proton beam from which depth dose curves,

profiles and other parameters can be determined to provide quality assurance for

clinical proton beams.

Figure 1. Left: photograph of scintillation light from a 60 MeV proton beam. Right:

Measured and corrected depth dose profiles.

ABSTRACT

Treatment Planning Evaluation of Volumetric Modulated Arc Therapy (VMAT) for

Craniospinal Irradiation (CSI)

Salwa Fathy, Tagreed ALawi, Nasser Al-Dhaibani

PURPOSE: The aim of this study is to assess the feasibility and accuracy of Volumetric

Modulated Arc Therapy (VMAT) technique for CSI regarding to improving the PTV dose

conformity and homogeneity with reducing the dose to organs at risk (OAR) with reporting the

integral dose (ID) received by non-target tissue (NTT).

METHODS: Four male patients (n=4) had received crainiospinal irradiation by volumetric

modulated arc therapy [VMAT] treatment planning technique [normalized such that 95% of PTV

(planning target volume) received at least 95% of the prescribed dose which is 36Gy in 20

fractions]. Plans were assessed using PTV dose coverage as D95% (the dose received by 95% of

PTV); D2% was taken as a reference for the maximum dose and D98% as a reference for the

minimum dose, the mean doses of OARs, conformity index 95% (CI95%), and homogeneity index

(HI), and non-target tissue integral doses (NTTID).

RESULTS: VMAT CSI is able to produce satisfied dose distributions with high PTV conformity

and homogeneity. The average D95% coverage of the PTV was 34Gy, with an average

conformity index 95% (CI95%) of 0.99 and an average homogeneity index (HI) of 1.13. In terms of

OAR sparing, VMAT technique allowed average mean doses acceptably low for all organs

[lenses, eyes, liver, kidneys, lungs, and heart were 7.73Gy, 14.39Gy, 8.16Gy, 6.97Gy, 8.06Gy,

and 8.18Gy respectively]. As regard the average integral dose for the non target tissue NTTID

was 307.21Gy.

CONCLUSION: CSI is considered one of the most challenging processes in radiotherapy. This

study provides a practically useful planning method for VMAT treatment of CSI that shows its

ability to achieve highly conformal and homogeneous treatment plans, while limiting the dose to

the surrounding OARs. However, this technical advantage of this VMAT technique was

associated with an increase in non target tissue integral dose that may be associated with

increase in risk of secondary malignancies. This VMAT approach should therefore be tested with

respect to late toxicity with further studies.

NOTES

ABSTRACT

Development and Evaluation of an Ultrasound Mammographic Density

Phantom

Majd Alharthi, Christian Langton

Science and Engineering Faculty, Queensland University of Technology, Brisbane,

Queensland, Australia

PURPOSE:This paper reports on the building of five breast phantoms, two of which simulated

different types of normal breast tissues: fatty tissues (subcutaneous fat and retromammary fat)

and glandular tissues. The other three phantoms simulated breast tissues abnormal with

respect to attenuation coefficients, velocity of sound, densities and broadband ultrasound

attenuation (BUA).

METHODS: Phantom composition and production are described in detail. Ultrasonic

properties were tested at 22ºC and 34ºC using a transmission technique with a 1-MHz

transducer, and a 5-MHz transducer was used for BUA.

RESULTS: Values for attenuation coefficients and the velocity of sound agree with published

values, and increased temperature was found to reduce the attenuation coefficients of all

phantoms. However, increased temperature was also found to increase the speed of sound in

non-fatty phantoms, while it reduced the speed in fatty phantoms. BUA measurements of non-

fatty phantoms had attenuations are linear proportional to frequencies between 3.3-3.7MHz

and higher values than those of fatty phantoms, while the signals for fatty phantoms fluctuated

due to lesser thickness.

CONCLUSION: Phantoms exhibited ultrasound properties similar to those found in clinical

scans of breast tissues, and attenuation coefficients and velocity of sound were also shown to

be affected by changes in temperature. A potential use for these phantoms is to build a

phantom that incorporates all five, which can be used to help develop ultrasound machines.

NOTES

ABSTRACT

Individualisation of radiotherapy dose fractionation based on the patient’s treatment

plan

Weam Alnojiadi, Hussein Albarakaty, Mukhtar Alshanqity, A Nahum

Hoffman and Nahum introduce modifications to the Withers iso-effective dose formula, which

is widely used widely used in external-beam radiotherapy to derive a new tumour dose

prescription such that there is normal-tissue (NT) iso-effect when changing the fraction size

and/or number. The modified formula takes account of the heterogeneity of normal tissue dose

and architecture ( i.e whether the organ is serial or parallel), which is not considered in the

basic Withers formula. In this study, we work on using the modified Withers formula in highly

conformal radiotherapy modalities like Intensity modulated radiotherapy (IMRT), stereotactic

ablative radiotherapy (SABR), rapid arc, and proton therapy. We work on the development of a

procedure for Individualization of the dose fractionation for each patient based on his/her own

treatment plan. The producer compromises of three stages 1) identifying the normal tissue,

which the most sensitive to hypofraciation using effective a/b ratio 2) calculating the iso toxic

dose 3) comparing the iso-dose with the tolerance and investigate the possibility of dose

escalation. Because the producer involves complex calculations, a software was developed to

carry out the calculations .

NOTES

ABSTRACT

Lung tumour imaging and volume delineation using PET scan

Bayan Baatiyah , Asma'a Basahel , Bashaier Al Mould.

Lung cancer is by far the most common cause of cancer death . The Reasons for this

High mortality rate: symptoms of lung cancer do not appear until the disease is already

in an advanced (non curable stage), many people may mistake symptoms of lung

cancer for other problems. Positron emission tomography (PET) play an essential role

in the diagnosis, staging, and follow-up of patients with lung cancer. PET scans are

often used to diagnose a condition or how a condition is developing PET is now an

important cancer imaging tool. FDG is not cancer specific and will accumulate in areas

with high levels of metabolism and glycolysis.

Accurate staging and target volume delineation (TVD) are crucial for lung cancer

patients because the treatment strategy and prognosis drastically differ according to

them . By reviewing the literature, accurate target volume delineation using the PET

has proved challenging due to the intrinsic properties PET data. Wide variety of image

segmentation techniques have been proposed (Zaidi, 2012). Because of the limitation

of using PET in TVD, the choice of method for tumour delineation via PET may

influence the TVD, with consequences for the outcome of the radiation therapy (Nestle

et al,2006).

As a result, lung tumour is fatal if not diagnostic early and the use of PET help in

diagnostic early. PET is more helpful in staging but not in TVD.

NOTES

NOTES

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NOTES

NOTES

MEDICAL PHYSICS SERVICES

The Medical Physics Department provides technical and clinical consultation to different

clinical departments within King Fahd Medical City and the Ministry of Health hospitals

in the fields of medical and health physics. The expertise and capabilities in these fields

also allow the Medical Physics Department to extend the services to other institutions in

the Kingdom of Saudi Arabia. Our services include:

Diagnostic X-ray

Acceptance tests, commissioning, quality control and calibration of all x-ray machines and

their accessories

Acceptance and quality control tests of radiation protection devices and materials

Development of specifications for different imaging modalities

X-ray tube leakage test

Conduct of training courses/workshops

Radiation Therapy

Acceptance tests, commissioning, quality control and calibration of all radiotherapy

equipment's including external beam, brachytherapy, treatment planning units,

conventional simulators and CT simulators

Manual and treatment planning and dose calculations

Patient dose verification

IMRT and SRS dose planning

Development of specifications

Nuclear Medicine

Acceptance tests, commissioning, quality control and calibration of gamma cameras,

SPECT, PET and CT- PET units

Acceptance and quality control tests of radiopharmaceuticals

Development of specifications

QA/QC of dose calibrators, well counters and all DEXA units and help in the development

and selection of normal ranges

Performance of non-imaging tests

Delivery of target radiation including Iodine for cancer patients

NOTES

MEDICAL PHYSICS SERVICES

Radiation Protection

Shielding design and verification

Scatter radiation measurement and mapping

OSL personnel dose monitoring service

Patient and occupational dose assessment

Environmental radiation level monitoring

Radiation emergency planning and response

Quality Assurance Program consultation

Physiological Measurements and Non-Ionizing Radiation

Acceptance tests, quality control and calibration of non-ionizing radiation emitting

machines and different physiological measuring equipment

NOTES

AUDITORIUM MAP

KFMC MAP

The observance of the International Day of

Medical Physics (IDMP) every 7th day of

November which is the birth anniversary of

Marie Curie is the International Organization

of Medical Physicists (IOMP) strategy to

promote awareness about the role of Medical

Physicists in radiation safety and quality health

care. It started in the year 2013 and continues

to be celebrated around the world with the

themes:

2017 IDMP theme

This year , we recognize and honor the works of women medical

physicists all around the world!

2013

Radiation Exposure from Medical

Procedures: Ask the Medical

Physicists

2014

Looking into the Body:

Advancement in Imaging Through

Medical Physics

2015Better Medical Physics = Better

Cancer Care in Radiation Oncology

2016Education in Physics: The Key to

Success

2017 Medical Physics: Providing a

Holistic Approach to Women

Patients and Women Staff Safety in

Radiation Medicine

International Day of Medical Physics

Documents

Main Auditorium, King Fahad Medical City, KSA - smps.org.sa · 9th Saudi Medical Physics Society Conference Main Auditorium, King Fahad Medical City, KSA 07-09 November 2017 ( 18-20