Welcome to brand new Ask the Fish. Post your questions in different boards to get in touch with CTisus team & Dr. Elliot K. Fishman!
Our old Ask the Fish forum can be still viewed as an archive at https://ctisus.com/redesign-askfish/index.html.
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Recent Posts

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!! Please Read - About the Board / Re: Coronary CTA
« Last post by Elliot K. Fishman, MD on July 14, 2019, 08:15:46 pm »
you can see the protocol on CTISUS protocol section.
our rule with infants is to wait a bit longer and opacify all structures to prevent a misdiagnosis
!! Please Read - About the Board / Re: Rules
« Last post by Elliot K. Fishman, MD on July 14, 2019, 08:14:28 pm »
Hope the rules are helpful to all
the ACR has lots of info and resources for free.
here is a link to get started
ACR lung screening at ttps://www.acr.org/Clinical-Resources/Lung-Cancer-Screening-Resources
CT Scan Protocols / Weight based dosing
« Last post by purple79 on July 05, 2019, 10:20:24 pm »
Do you utilize weight based dosing. What is the formula you follow if you currently are. We do not have a Medrad p3t injector that would calculate it.
General Questions / Organ Dose Mudulation (ODM)
« Last post by purple79 on July 03, 2019, 08:08:23 pm »
Do you currently use the ODM feature on GE scanners?  If you do, have you noticed any cons to it. If you do not use it what is the reason why? Currently in the process of deciding if this is a process we would like to implement.
!! Please Read - About the Board / Low Dose Protocol for Lung Screenign
« Last post by sbsrt570 on July 02, 2019, 11:51:03 am »
Looking for a protocol for CT Low Dose of the lung? Also Are there any ACR requirements for the facility, i.e. do they have to be ACR Certified?
Thank you.
CT Scan Protocols / Re: 20g vs 22g for CTA work
« Last post by Elliot K. Fishman, MD on June 06, 2019, 11:53:57 am »
you should at least use the B and D catheters so that you can inject 5 cc thru a 22g
these are the Nexiva catheters
CT Scan Protocols / Re: CTPA in Abnormal Lung
« Last post by Elliot K. Fishman, MD on June 06, 2019, 11:51:40 am »
we do not and have not found this to be an issue. triggering off the main PA works fine
CT Scan Protocols / GFR Threshold & IVH
« Last post by BthompsonVT on June 04, 2019, 11:25:31 am »
Can anyone share with me their current protocol for GFR thresholds and if you currently have one, your IV Hydration protocol when administering Iodinated Contrast Media? We've been using an outdated protocol that we had received input from a Nephrologist but that was years ago and now the ACR contrast manual has become very vague. We currently require IV Hydration on patients with a GFR 30-39 (1hr pre- 6hrs post/Sodium Bicarb mix) and PO hydration on patients with a GFR 40-59. University Medical Center down the road only does IV Hydration when GFR is <30...
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