Mohammad Hirzallah

Neurologist/Intensivist with a big passion for space, travel and photography

[Mohammad Hirzallah @7irz]

@drmohansai @aartisarwal @fabio_taccone @chiara_robba @avkwong @ross_prager I have not seen any but Jacob Pansell has exceptional ONSD images in his publications and he likes to use the zoom feature

[Mohammad Hirzallah @7irz]

@avkwong @ross_prager @drmohansai @aartisarwal @fabio_taccone @chiara_robba Ideally, you would want an image where the quality is high enough to perform either ONSDint or ONSDext, otherwise you can't sure you're not mixing the measurements which is can lead to large variability

[Mohan Sai Gudela, DM @drmohansai]

Many thanks to @aartisarwal and team for a wonderful symposium on Critical Care Neurosonology. Grateful for a high value learning. Looking forward to contribute to research in Transcranial Doppler🙌🤝
@chiara_robba @m_zawadka @fabio_taccone @7irz @JimmySuhMD

[Mohammad Hirzallah @7irz]

Gareteful to share that I received the Norton Rose Full right Faculty Excellence Award for Teaching and Evaluation at @bcmhouston

[Mohammad Hirzallah @7irz]

In our latest publication with WEM, the Wilderness Medicine society journal, we reviewed 4882 outdoor events that led to injury, mortality, or search and rescue events @TPWDparks to inform the development of wilderness prevention and education efforts.

https://t.co/OpO64uPdnm

[César Escamilla @cescamillaMD]

Our new review in @JNeuroimaging about ONSD automation

“Machine learning can improve ONSD utility as a non-invasive ICP estimation tool”

https://t.co/EWY3DbBk92

@bcmneurology @7irz @NoeliaCristina_

[Chiara Robba @chiara_robba]

B-ICONIC Consensus. A proposal to apply non invasive methods to help managing TBI when invasive tools are not available

[Mohammad Hirzallah @7irz]

From our ONSD automation review published @JNeuroimaging :
- Both image analysis and machine learning used.
- Automation is more sensitive to artifacts than humans.
- Automation is focused on image analysis not acquisition.
https://t.co/8TBIIeWFMi
@bcmneurology @cescamillaMD

[Aarti Sarwal, FNCS, FAAN, FCCM, RPNI, Professor @aartisarwal]

#NotebookLM
@7irz et al: #ONSD #POCUS quality criteria checklist international consensus
⚖️ imaging & measurement ocular #ultrasound

Article: https://t.co/xwQEZUj80u

#DeepDive Podcast: https://t.co/DTmzDgWjQa

#CritCareMed @SCCM #Medtwitter

[Mohammad Hirzallah @7irz]

A quick discussion about our work with @BCMSpaceHealth and @PolarisProgram #space #spacemedicine

[Translational Research Institute for Space Health @BCMSpaceHealth]

A key component of the EXPAND research projects during space missions, like the @PolarisProgram’s Polaris Dawn mission, is archiving and sharing of biomedical results, biosamples, and #research data. https://t.co/lMhM3zjXY4 @7irz

[Mohammad Hirzallah @7irz]

@BCMSpaceHealth just released their postdoctoral fellowship award.
If you are interested in working on SANS and cerebral venous congestions issues, lets talk! I would love to mentor you!
#spacehealth #spacemedicine
Details here: https://t.co/GTB3UtGkjl

[Mohammad Hirzallah @7irz]

Our @Inspiration4 manuscript made the cover of @Nature
https://t.co/rhimJ26xaB

[Mohammad Hirzallah @7irz]

For medical students or residents looking for a great #spacemedicine opportunity, the Kennedy Space Center Aerospace and Occupational medicine clerkship just opened applications:
https://t.co/MSS7NIjHcv

Good luck!

[Neurocritical Care Society of India @NCSIofficial]

Optic Nerve Sheath Diameter (ONSD) measurements are known for their variability.
Here is the much required checklist to standardize measurement of ONSD.
Few key points:
- Use Transverse axis for measurements
- Neutral gaze whenever possible
- Use ONSDint for measurements
#NeurocriticalCare

[Mohammad Hirzallah @7irz]

We got our work with @inspiration4x team published in @Nature! The paper presents health data from the first all-civilian orbital spaceflight mission. #spacemed
https://t.co/rhimJ25Zl3
@BCMSpaceHealth @bcmneurology @SpaceX

[Mohammad Hirzallah @7irz]

Thanks @CritCareMed for featuring our publication on #ONSD #POCUS standardization. This work is endorsed by #DEGUM (German society for ultrasound in medicine) & @neurosonology A big thank you to our experts many of whom are with @neurocritical @SCCM @ESICM @asneuroimaging.

[Critical Care Medicine @CritCareMed]

#HotoffthePress

Hirzallah et al: #ONSD #POCUS Quality Criteria Checklist: An International Consensus Statement on #ONSD Imaging & Measurement
📑23 quality criteria
👨‍🏫 50 experts

Link: https://t.co/laiZ7HB8hj

#CritCareMed #ultrasound @SCCM

Fig: ONSD int & ext measurements

[Mohammad Hirzallah @7irz]

@MarkusZiesmann @dan___kim @SCCM @piergiorgioloc2 @CKrogias Thanks for asking! "If available, the ocular preset on the ultrasound machine should be used". "If available" was added to accommodate machines without this preset.
We need to be cognisant of presets even if we can't control them. See example: unsafe presets with MI >0.23 & TI>1

[Mohammad Hirzallah @7irz]

@dan___kim @gokpocus @SCCM @piergiorgioloc2 @CKrogias Agreed, if you look at the image below, the measurement should start from the dashed line "the level of the retina" and not the arrow "papilla" per expert consensus.

[Dan Kim @dan___kim]

Expert consensus checklist on #POCUS for #ONSD:
•Linear probe, #ocular preset
•Neutral gaze
•Transverse imaging axis
•Visualize optic nerve perpendicular to globe in max length
•Measure 3 mm back
•Measure internal ONSD 90º to optic nerve axis

🔗https://t.co/EzClqfHt8a