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Clifford Thornton

Thu. 30 Jun.16,
17:48

[Start of:
'Max. SAR per second - Whole Body (Normal, 1st Controlled, 2nd Control)'
0 Reply]


 
  Category: 
Safety

 
Max. SAR per second - Whole Body (Normal, 1st Controlled, 2nd Control)
Hello fellow imaging technologists & professionals!

I'm involved in the development of a new type of cardiovascular medical device.

This device employs MRI technology/scans to power, guide, and control the medical devices and their active elements.

I conducted some research into the following question, "How much x-ray energy is allowed within a human every sec from a MRI machine?"

With regards to SAR rates, I understand that these are the upper-limits for the various settings for a full-body scan:

Normal setting: Whole body SAR - 2

1st Level Controlled: Whole body SAR - 4

2nd Level Controlled: Whole body SAR - >4

Would you agree with these calculations that I performed, and if not, why? And what would be a better way to calculate this?

For WHOLE BODY SAR:

-SO IF IN NORMAL MODE FOR MRI, THE MAX. ALLOWABLE SAR IS "2" OVER A 6 MIN. PERIOD, THEN
-6 MIN. = 360 SECONDS
-2 / 360 = 0.00555

FOR 1ST LEVEL CONTROLLED:

-SO IF IN 1ST LEVEL CONTROLLED FOR MRI, THE MAX. ALLOWABLE SAR IS "4" OVER A 6 MIN. PERIOD, THEN
-6 MIN. = 360 SECONDS
-4/ 360 = 0.01111

Other questions -- What is the difference between normal setting, 1st conrolled and 2nd controlled?

What is the clinical purpose of these various settings?

Any insights that you would be willing to share in regards to the above would be greatly appreciated!

I was trained and registred as a diagnostic echocardiographer, specializing in cardiovascular ultrasound, therefore I need help with MRI information/specifications. I am now focusing on the medical device field, but this technology/device happens to be highly dependent on MRI technology.


Any help from the group would be greatly appreciated!!

Thanks & regards,


Clifford Thornton
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Reader Mail

Tue. 30 Sep.14,
03:17

[Reply (4 of 5) to:
'Job Opportunities in Qatar'
started by: 'Myla Taller'
on Thu. 17 May.12]


 
  Category: 
Jobs

 
Job Opportunities in Qatar
00974-70133170
Uzma Anwar
Uzmaanwar786@yahoo.com
29-09-2914
Hamad Medical Corporation
Doha Qatar

Dear Sir, Madam:
Having seen your advertisement for a position of a MRI Technologist in the website, I would like to explore this opportunity further. I am a Radiological Technologist and I have passed my promatric examination from Doha Qatar. I have finished my Data Flow.
I have ability to perform procedures independently in MRI Department. I am able to meet the standards for quality and safety of patients. My thirst for making new discoveries is a trait that does not let me sit idle at my work place.
My related experience includes; X-Ray Ultrasound and MRI . Please find my enclosed resume which will provide you with the complete details of my qualifications and skills.
I would like to contact you to arrange a possible interview. Please feel free to contact me at 00974-70133170 if you need information regarding my credentials other than what is mentioned in my job application form and resume.
Thank you for your time and consideration.

Sincerely,
Uzma Anwar
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michelle cyrus

Wed. 24 Sep.14,
16:43

[Start of:
'[URGENT] Need MO disk 2.3GB of Hitachi MRI AIRIS MATE'
0 Reply]


 
  Category: 
General

 
[URGENT] Need MO disk 2.3GB of Hitachi MRI AIRIS MATE
We are urgently looking for Maxell magneto optical disk 2.3GB 512byte/sector rewriteable MA172-S1.
The disk contains AIRIS MATE (ultraSPARC- IIi) system software.
Ship to: Vietnam
Please email us to singaporemedical@outlook.com or call +84912460068 if you have one.
Thanks a lot.


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Benjamin Timpauer

Thu. 4 Oct.12,
08:40

[Reply (5 of 10) to:
'ARMRIT in California?'
started by: 'James Benitez'
on Wed. 4 Jan.12]


 
  Category: 
Organisations

 
ARMRIT in California?
Facts and performance do support the indisputable fact that ARMRIT professionals have a greater depth of study and assessment of their technique. ARRT techs are grounded in the modality involving radiation. Cross-training is never the same as dedicated didactic and hands on training with the longest externship vis-a-vis all other modalities...and that is ARMRIT.
California is recognizing ARMRIT. Maybe not at the rate it deserves, especially in hospitals. But it is progressing. ARRT has had a monopoly as a registry. Ultrasound was correct in setting up its own registry. ARMRIT is exercising that right as well; as well it should considering it is a non-ionizing modality to begin with. Several times I have come across ARRT techs who cross-trained for MRI and continually demonstrate "button-pushing", time-cutting habits. I have come across ARRT techs who are employed and doing CT work who are not even certified to do CT!!
The scope of ARRT is wide and the medical system is too privatized to monitor abuses of ARRT techs practicing as non-certified CT or MRI personnel under the umbrella of another certified employee. This is a major loophole that is absolutely doing a great disservice to patients and misrepresenting imaging professionals across the board.
And to those who have stated that ARMRIT is taking away jobs from ARRT.....well, if the qualifications fit the position, then what is the issue with the more qualified, better trained professional being offered the position?
Facilities are recognizing the value of an MRI professional with dedicated training. I was offered a staff technologist position before I even took my boards; the first time in this company's history to employ ARMRIT over ARRT.
During my first 3 months as an employed MRI technologist, I quickly recognized several inefficiencies within many existing protocols used daily at the facility for which I worked. I could not understand how for so long before I started work there, that these inaccurate and unrefined sequences could not have been addressed. Well, an ARRT tech, cross-trained in MRI wrote them.
No disrespect to ARRT. This is not a critique but an observation of the disparity of the domination of ARRT as a registry for modalities it should not have jurisdiction over.
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Myla Taller

Thu. 17 May.12,
11:34

[Start of:
'Job Opportunities in Qatar'
4 Replies]


 
  Category: 
Jobs

 
Job Opportunities in Qatar
Our Qatar based client is currently looking for qualified Technologists for the following categories:

Senior Radiology Technologist CT Scan (Pediatrics)
Senior Radiology Technologist Interventional Angiography
Radiology Technologist Interventional Angiography
Senior Radiology Technologist MRI (Pediatrics)
Radiology Technologist Bone Mineral Densitometry/Gen X-Ray
Radiology Technologist Mammography
Radiology Technologist MRI (Oncology)
Radiology Technologist Cardiac Nuclear Medicine
Radiology Supervisor Ultrasound Specialized/Management
Radiology Technologist Ultrasound (Breast Imaging)
Radiology Technologist Ultrasound
Radiology Technologist Ultrasound (IVF)

The post offers a generous tax free remuneration package which includes: Basic Salary Range salary is open for negotiation and will depend on your qualifications & experience; 40 days annual vacation
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