Discover and read the best of Twitter Threads about #MRI

Most recents (24)

Scott Morrison made an announcement about reducing PBS Medicines. Trouble is he INCREASED them on Jan 1st, 2022, during a Pandemic

affordablemedicines.com.au/home/ #auspol @Mark_Butler_MP Image
Anyone see the Irony here. On the same day Morrison announces cheaper medication and healthcare - He cuts Heart scans, ECG’s from #Medicare Rebates. #LNPCutsToHealth

themandarin.com.au/187973-electio… ImageImage
The moment Liberals Distracted Voters, while they Cut #MRI’s, sleep apnea, #spinal fusion, skin lesion treatments and #Allergy Testing in 2018.
#LNPHealthCuts @RACGP @gedkearney #Medicare #auspol2022 Image
Read 11 tweets
Read 15 tweets
So recently I did a FOIA (Freedom of Information Act) request regarding CMS radiology (MRI) safety standards at outpatient imaging centers.

The results were disturbing...
The 2008 MIPPA act sect. 135, (3) provides that the "Secretary [of HHS] shall establish procedures to ensure that the criteria used by an accreditation organization…"
...and "standards that require the supplier have procedures in place to ensure the safety of persons who furnish the technical component of advanced diagnostic imaging services and individuals to whom such services are furnished"
Read 14 tweets
Team it's time to address the Hoeg et al preprint on post-COVID vaccine myocarditis. How am I qualified to speak about myocarditis? I am board certified in paediatric cardiology and currently have patients recovering from this condition. TLDR: They are doing quite well. #MRI
What is the premise of that article? directly scanning VAERS data will result in capturing more cases of myocarditis, and therefore the "conclusion" that COVID vaccine generates a higher risk of myocarditis than COVID disease. But - cardiologists have diagnostic criteria. #heart
All that bleeds troponin is **not** myocarditis. I cite my professional society, the American College of Cardiology: #myocarditis #COVID19 #vaccination #VaccinesWork Image
Read 18 tweets
Welcome to MRI Safety Week!

All this week we're highlighting various 'why' elements of MRI Safety Week and the Year of MRI Safety.

Today's 🧵: What has changed in MRI safety?

#MRI #MRIsafety #MRIsafetyweek
Immediately following the Colombini accident (see yesterday's thread), the @RadiologyACR convened what they called a 'blue ribbon panel' on MRI safety. That group published the first MRI safety best practice manual in 2002.
That specific document was expanded and re-released in 2004, 2007, 2013, and most recently in 2020.

The UK's @MHRAgovuk released MRI safety guidelines in 2007. Also in 2007, the @RANZCRcollege released their MRI safety guidelines (borrowing heavily from the ACR's publicaitons).
Read 13 tweets
Welcome to MRI Safety Week!

All this week we're highlighting various 'why' elements of MRI Safety Week and the Year of MRI Safety.

Today's 🧵: The accident that started contemporary MRI safety

#MRI #MRIsafety #MRIsafetyweek
20 years ago -almost to the minute- a young boy was being taken to the MRI of the county hospital.

A few days prior he had an accident on the playground and a CT scan of his skull revealed a brain tumor that would likely have killed him, had it not been found.
The boy was transferred from the community hospital to the larger county hospital, where the tumor was confirmed, and brain surgery was planned.

The surgery was a success, and all indications were that the tumor was fully removed and the boy would have a full recovery.
Read 18 tweets
É DAQUI A POUCO! A GRANDE ABERTURA DOS JOGOS OLÍMPICOS DE VERÃO TÓQUIO 2020!

A partir das 08h, ao vivo na Globo, SporTV e BandSports!
#Tokyo2020 #JogosOlímpicos
20 MINUTOS! Bruno e Ketleyn já estão no preparo!

📸 Christian Dawes/COB
COMEÇOU! FINALMENTE 😭😭😭😭😭
Read 101 tweets
#WeekendLecture
#CerebralMicrobleeds #CMB

Radiological construct: small (2–10 mm diameter) round or ovoid #hypointense foci with associated #blooming with enhanced visibility on #MRI sequences sensitive to #susceptibility effects

thelancet.com/journals/laneu… ImageImage
#WeekendLecture
#CMB
🔬#Pathology: recent or old microhaemorrhages
🩸Microvessel injuries, ie: dilatation/fragmentation of the wall, amyloid-ß (in CAA) and fibrin extravasation
🩸Extravasation of red blood cells
🩸#hemosiderin-laden macrophages
karger.com/Article/FullTe… ImageImage
#WeekendLecture

In daily practice #CMB represents a radiological marker of #small vessel disease

In general:
🩸Strictly #lobar CMBs👉CAA
🩸Strictly #deep👉hypertension-related SVD ie #arteriolosclerosis
🩸Mixed 👉combination👆, but must think #hereditary #SVD, ie #CADASIL Image
Read 8 tweets
@Wagner_Nephro @sennasthunder @lambertdebb My observation: Hard strings extruded through scars to create long Strands like Hairs, some like ceramic knives. If I pluck a shard from left thumb tip, I feel a tug in my neck, shoulder. Once the hard pieces come out, completely healed.
I thought with all my tugging and unconscious biting of my fingers and several old scars that they would be Red, Inflamed, Bleeding, Infected. They are not.I thought if I had OCD that my fingers would never heal.They are healing once the chunks are out. Sunlight, salt, charcoal.
Just realized I stop telling my Doctors.
They just give me a roll of the eyes 👀 and maybe a little internal chuckle 🤭 as they Observe Old Nurse Mary looking fine as ever. Never showing pain so bad it causes nausea. Yup, that’s part of our problem, pwMS 🤦‍♀️ @GavinGiovannoni
Read 4 tweets
1/ These new interesting insights could provide answers for #MEcfs and #LongCovid.

"Researchers tracked antigens and other substances crossing the arachnoid barrier (known for his impermeability) but they found leaks in this particular area" #LeakyBrain
quantamagazine.org/how-the-immune…
2/ "Immune cells are waiting there. When these cells find a worrisome antigen, like one that suggests disease, they initiate a chain reaction that creates an immune response" #NeuroImmunology
3/ “Immune surveillance of the brain takes place. It’s absolutely normal, like in any other tissue,” said Jonathan Kipnis. “The only exception is that instead of this happening within the tissue, the brain pushed all its immune activity to its borders.”
Read 5 tweets
"#Economics in #Nouns and #Verbs"

Below, we share key excerpts from SFI External Prof W. Brian Arthur's (@Stanford, @PARCinc) latest, available at arxiv.org/abs/2104.01868, which we recommend for its elucidation of key blind spots in economic thinking & how to address them... Image
"Different means 'see' differently—often they reveal different versions of the same object. #MRI looks at body parts and reveals soft tissue structure; #CT scanning looks at the same body parts and reveals bone structure. There is no 'correct' version of internal body parts."
"#Mathematics is powerful in #economics—and necessary—but I don’t believe that it is suited to describing all that is interesting in an economy. In fact I don’t believe that there is any privileged way to view the economy. There are useful ways and less useful ones."
Read 14 tweets
1/

@US_FDA approved the #Qcollar jugular compression device to "protect athletes' brains during head impacts."

This decision was based on VERY FLAWED DATA and does NOT demonstrate the safety or effectiveness of the Q-collar.

Read detailed thread⬇️

bit.ly/3q9ZZJL
2/

Here is the text from the @FDADeviceInfo press release.

If you don't understand the highly nuanced #MRI technique known as DTI, these results sound straightforward and convincing.

THEY ARE NOT. Don't be fooled by these numbers!🤔

I will dissect these in the thread below. Image
3a/

"No significant changes" is based AVERAGE response, not individual.

First, an easy-to-understand analogy below.

If half the sample experiences an increase and half experiences a decrease, they can cancel each other out to falsely suggest "no change" when one does exists! Image
Read 24 tweets
⚠️#Ocular #MRI Findings in Patients with Severe #COVID19: A Retrospective Multicenter Observational Study
» doi.org/10.1148/radiol…
All patients had nodules in the macular region, 8/9 (89%) had bilateral nodules, 2/9 (22%) had nodules outside the macular region. Screening needed. Image
⚠️🔝New-Onset #IgG #Autoantibodies in Hospitalized Patients with #COVID19
» doi.org/10.1101/2021.0…
An international team of researchers studying COVID-19 has made a startling and pivotal discovery: The virus appears to cause the body to make weapons to attack its own tissues. Image
⚠️🔝Patterns of myocardial injury in recovered troponin-positive COVID-19 patients assessed by cardiovascular magnetic resonance
» academic.oup.com/eurheartj/adva…
Damage to the heart found in more than half of #COVID19 patients discharged from hospital who show raised levels of troponin. Image
Read 235 tweets
Doğrudur
7 sene önce hayatımda İlk ve Son defa hayatta kalmak adına
benzeri olduğum binlerce milyonlarca insan gibi
#MRI da verilen toksik #gadolinium kontrastın başlattığı sistemik fibrozu
şaşkınlık ve korku içinde kanıtlamak için Dr lardan yardım istediğim ....
en güvenilecek meslek sahibi
Dr ların hayatlarını devam ettirmek adına pişkince yalan söyleyebileceği ve insanları ölüme iterek
günler boyu geceler boyu aylar seneler boyu hiç bitmeyecek bir cehennem işkencesine maruz kalmalarına sebep olabileceklerini tahmin edemiyor insan
düşüyorsun en karanlığa
çaresiz acı içinde yardımsız umutsuz
herkes yüz çeviriyor
her gece çocuklarının yüzüne bakıp Tanrı ya ölmek için yalvarmak bu noktada bir çare olmuyor tabi ....
sonra zaman ilerliyor ..
sonra başlıyorsun ..
savaşmaya ....
ve öyle güçleniyorsun ki .
Read 3 tweets
Dr. Eddy, we are a group of concerned people who have had #MRI with #Gadolinium contrast,believe we have retention,Ill effects.Telling my Doctors is ineffective.Pictures of tattered fingertips-label psych.Pain unreal blamed on MS. @sennasthunder @Gadolinium_MRI @Wagner_Nephro
@threadreaderapp #unroll please. Try as We might, nobody seems to want to look further, deeper. This rare earth metal. Mined in China by ? Slaves? Is pushed by Pharma and Neurologists and Radiologists Love the pictures!
We were all told, it all comes out in our urine. Meanwhile I feel like it became ceramic knives cutting at my skin especially where I have Scars. Linear Gad first. Then Macrocyclic next “It’s Safer” huh? They told me Linear was safe.
Read 4 tweets
Do the benefits outweigh the risks in using MRI gadolinium-based contrast media (GBCM) in patients with kidney disease?

MAJOR new consensus statement from @RadiologyACR and @NKF published in @Radiology_RSNA at doi.org/10.1148/radiol…

A #RadInTraining #TWEETORIAL thread 👇
BACKGROUND:
GBCMs consist of gadolinium ions chelated with organic ligands to minimize toxicity from free gadolinium.

Which chemical class has a lower rate of free gadolinium dissociation?
Answer: Macrocyclic GBCMs are more stable (lower ratio of free gadolinium to complexed ligand). (Remember, 𝐋inear is 𝐋abile)

Macrocyclics form a complete ring, whereas linear agents form an incomplete ring.

Examples:
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1/4
43yr chronic #alcohol user on Liv.52 #Herbal supplement for 1yr. Believes Liv52='hepatoprotective'. Consumes along with to cancel alcohol-toxicity. Diabetes uncontrolled on #Ayurveda. Comes with #jaundice, severe #headache, eyes 'bulged' 2 days, nasal discharge #livertwitter Image
2/4
At admission, #seizures, uncontrolled, put on #ventilator. Deep jaundice, comatose. Investigations=acute on #chronic liver failure #aclf
#MRI Brain Part 1👇
Extensive hemorrhagic infarcts, almost all of anterior and mid #brain.
#medicine #MedTwitter #radiology Image
3/4
MRI Brain Part 2👇
Both sides cortical venous thrombosis and anterior third of superior saggitsl sinus thrombus.
#imaging #stroke #NeuroTwitter #neurology #NeuroTwitterNetwork Image
Read 5 tweets
Strange cause for #cirrhosis
Maybe very #rare #MedEd
53yrs man, voice change, recurrent headaches, male breast enlargement. Stops socialising. Has bleed one day, #endoscopy varices, #biopsy fatty liver cirrhosis
No metabolic syndrome.
MRI Brain done. #livertwitter #radio
1/3 Image
What is the diagnosis?
In patients with cirrhosis, always try to find the cause in those who present early. There is no idiopathic, no cryptogenic. Its all 'missed' cirrhosis.
2/3 #liverpath
#MedTwitter #pathology #radiology #MRI #brain #Neurology #Endocrinology #NeuroTwitter Image
#diagnosis: #fatty liver related cirrhosis due to #pituatory macro adenoma with high prolactin, high GH, low #thyroid function. #clinical examination, acromegaly features with central obesity. #Examine 1st, then investigate. #MedicalStudent #medicine #MedStudentTwitter
3/3
Read 4 tweets
You're invited to join in the recognition of MRI Safety Week from July 27 (the anniversary of the infamous Colombini accident) through to August 2.

#MRIsafety #MRI #Radiology #PatientSafety

(1/11)
Some of you may be thinking, 'hey, isn't MRI the "safe" imaging choice? We're supposed to worry about X-rays and ionizing radiation, and move to MRI when possible, right?'

Well a lot of elements baked into that conventional wisdom have been shifting over time...

(2/11)
Let's start with medical ionizing radiation exposure (predominantly experienced as X-rays). Concern about medical radiation exposure, and resulting technological advancements in imaging equipment, have substantially reduced per-exam patient exposure.

(3/11)
Read 12 tweets
Interested in doing/analyzing #neuroimaging studies in #infants or young #children? New pre-print by @GaabLab led by the wonderful @TedTuresky:
#Neuroimaging the rapidly developing #brain: Current challenges for #MRI studies in the first five years of life
osf.io/7q4cm/
Rapid and widespread changes in #brain anatomy and physiology in the first five years of life present substantial challenges for developmental #MRI studies. One persistent challenge is that methods best suited to earlier developmental stages are suboptimal for later stages
This new review describes the data acquisition, processing, & analysis challenges that introduce these potential biases when conducting & analyzing data from infants and young children & attempts to elucidate decisions & recommendations that can optimize developmental comparisons
Read 4 tweets
Now eye enjoyed an important question addressed at #EAN2020. Good to think about when you are called to ED for #opticneuritis. Let’s think about it together. Let’s focus on #clinicaldiagnosismaking #meded #medstudenttwitter #medtwitter #neurologyresident @WNGtweets @EANeurology
How do you tell if it’s optic neuritis or not? #painless #unilateral #altitudinal -means top half or bottom half of the field - vision loss more likely to be non-arteritic AION. Any other red flags less likely to be optic neuritis?
Now if it’s #painful it’s more likely #opticneuritis - but what sort? Bilateral vision loss and painful, think #MOG. Unilateral severe vision loss more than pain, think #Aquaporin4. MRI orbits show longitudinal extensive optic nerve enhancement in both. So MRI orbits for clues.
Read 8 tweets
Let’s do a quick one on #clinicaldecisionmaking and #neuroimaging. See bright spot on MRI T2 Brain just means increased water -could be any insult to the brain - #infection #inflammation #ischemia #neoplasm are the top 4 you gotta have in your brain. Pun intended. #MedTwitter
Then you think - active or inactive process? If it’s actively destroying the BBB, it’ll enhance on contrast enhancement. So get MRI with and without contrast. Why without? T2 shine-through - but that’s for another time. #MedStudentTwitter #neurology #neurologyresident
Now the important question here is what you do - remember that nice poem on #theroadnottaken by #robertfrost? 2 widely diverging choices - to immunosuppress or not to immunosuppress. #tobeornottobe #hamlet #MedTwitter #AcademicTwitter #MedStudentChat
Read 13 tweets
I am very excited to share our latest work published in @eLife! We combined #MEG, #fMRI and #MRI for #BrainAge prediction & #biomarker development. Each modality added unique information & enhanced brain-behavior mapping! elifesciences.org/articles/54055 Thread👇
1/ We combined anatomical MRI (surface area, thickness, volume), fMRI-connectivity and MEG (source power, connectivity, alpha-peak, 1/f, latencies) with a stacking approach (1: ridge, 2: random forest). We made sure our model potentially extracts information from missing values.
2/ Is combining multimodal brain data worth the effort for brain age prediction? Compared to anatomical MRI, fMRI and MEG added similar improvements. Combining all modalities yielded to markedly improved prediction performance. MEG and fMRI contributed independent information!
Read 10 tweets
(ثريد) لمواد ومحتوى علمي تهم ( الطالب ، مهندس ، أكاديمي ) لتخصص #الهندسة_الطبية والمهتمين بشتى المجالات .
و(نسعى)بإذن الله لنشر كل ما يفيد #المهندس_الطبي .
و(نرحب) بأي مبادرة لإثراء والارتقاء بالتخصص ونسعد بتواصلكم من خلال قنوات الفريق الرسميه .
#مقال علمي بعنوان ( طريقة معالجة الصور المقطعية لتشخيص التهاب الجيوب الأنفية المزمن ) للباحث م . عبدالحميد
@AZabrmawi

لمشاهدة المقال كاملاً 🔽

t.me/Bme2030_edu/62
شرح (عملي) لعملية ( إستخدام ،صيانة ، معايرة ) جهاز #التنفس_الصناعي

t.me/Bme2030_edu/63
Read 146 tweets

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