I’m Charles Lau, MD, MBA, a board-certified physician, fellowship trained in cardiothoracic radiology & vascular/interventional radiology.
I’ve been on the faculty at Penn, Cleveland Clinic & Stanford over the last two decades, and am an award-winning educator. My audiences have been diverse, from top medical specialists at international conferences, to engineering teams at Google, to high school students.
I spend most of my time, however, teaching & working with young physicians, and I’ve created a large anthology of radiology lectures over the years… which I continue to add to all the time. I didn’t want to see all of these lectures silently gather dust on my laptop, so I’m sharing them with you here, available anywhere & anytime.
I’ve invested lots of effort & time to package complex concepts and material for you, more simply and elegantly than you’ll find almost anywhere else. No matter where you are in your training or your area of healthcare, there’s something here for you.
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I may not watch every video right away, but you're my first choice for learning. Thank you sir❤
Thanks
I know a few women who say thermography saved their lives where a mammogram didn't detect breast cancer. Are you able to do another video looking into mammograms vs ultrasounds vs thermography? Thermography can be a good complement as well and uses zero radiation.
Thx
Great lecture with excellent use of visuals. Might I suggest a couple of take home points at the end of the lecture. I’ve been recommending you to our junior registrars!
Awesome vid man this is such a nice way to conceptualize everything.
Amazing ❤
Thanks so much 👏👏👏👏👏
As always amazing talk, you are truly the best here on KZread! At 29:40 ("err on the side of being sensitive instead of being specific in TB") you mean that we should rather order a few too many unnecessary expensive tests than too few (in case the chest x-ray is not obviously normal), right?
Thanks for the kind compliment! Yes, basically err on the side of more false positives, just like for most screening tests.
Exactly what I was looking for. Thank you!
Do you have a contact address?
Just a question if the tumor is left and we have an involvement of retrotracheal LN which is considered as right the stage will be contralateral (N3) ?
Yes, we would consider this as N3 category.
Excellent
Good Images describe the context better... thank you :)
Great presentation
Rads resident here, thank you for your videos, they have a sweet spot amount of detail. Looking forward to and hoping for many more!
Amazing talk!
Great presentation . Let's count how many "ummm" and "uhhhs" he says
750 to 1,000 would be a conservative estimate, though I sort of figured this out about two months into uploading talks to KZread. The ones from April 2023 and on are more formally recorded (way fewer uhhhs), instead of me just talking totally off the cuff into my iPad.
@@radiologyframeworks 🤣🤣🤣🤣🤣 seriously the most bad ass response ever ! Your attitude is awesome!!! All joking aside this is a great video ...
Another fabulous lecture. I really appreciate how much effort you put into your visual aids. Your content is excellent, and you integrate the information in unique and useful ways, you have visually appealing and useful (yet minimalistic) visuals that aid learning. No fluff. No extraneous info. I can really see how you are an award winning lecturer. I hope to be a fraction as good at teaching when I am a consultant radiologist! Shared your website with all the trainees at my institution in Australia!
Thanks so much for the kind words & encouragement!
Nice delivery. Thank you
Very helpful
Radiology registrar here. Incredible lecture. Fabulous diagrams and other visuals.
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Very Informative!! Thank You!!
So fascinating to learn that there are radiological findings in diabetes. Great lecture as always; really enjoy the stuff you make.
You didn’t explain right lung lobe and left lung lobe on lateral view?
Brilliant doco thanks
Thank you very much for your videos! Could you please tell me where the information about calcification patterns comes from? In our country, amorphous calcification is considered to be a benign sign.
This approach to lung nodule calcification patterns was taught to us when I was resident, and continues to be what my colleagues and I continue to teach our residents today. It appears in textbooks we assign for reading, and in the scientific literature too. Take for example, the chest radiology textbook "Diagnostic Thoracic Imaging" by Wallace T. Miller (a radiology textbook favored at Penn): "Amorphous, irregular, punctate, and eccentric patterns of calcification have been identified in a variety of malignancies including bronchogenic carcinoma, carcinoid tumors, and metastasis." "It must be remembered that calcification alone is not diagnostic of a granuloma or a benign condition. Calcification will be present in 6% to 14% of primary lung carcinomas. However, the calcification in cancer is typically amorphous or stippled in character, different than the patterns of calcification which are specific for granulomas." Similar discussions of the different lung nodule calcification patterns and their implications go back for decades in the scientific literature. Take for example the 1993 AJR paper "CT of the Lung: Patterns of Calcification and Other High-Attenuation Abnormalities" by Chai and Patz: "Approximately 6% of all primary lung cancers show a punctate, amorphous, or reticular pattern of calcification on CT scans. This variation is probably due to several different causes: (1) engulfment of benign calcification by the tumor as is seen in scar carcinoma, (2) dystrophic calcification arising from necrosis within the tumor, and (3) calcium deposition resulting from secretions by the tumor."
Thank you very much! Could you please tell me if the term "infiltration" is used when describing CT scans?
"Infiltration" is a term that's not commonly encountered with respect to the CT scans. If folks do use this term, it's typically on chest x-rays when they see a nonspecific lung opacity. Since CT imaging usually affords us the capability to be more specific in characterizing a lung opacity, the need to use a "catch-all" nonspecific term like "infiltration" is much less. Many subspecialist chest radiologists - myself included - discourage the use of the term "infiltration" altogether - not be cause it's nonspecific, but because it means different things to different people and is therefore ambiguous in its meaning. For some folks, an "infiltration" could represent atelectasis, infection, non-infectious inflammation, hemorrhage, neoplasm, or interstitial fibrosis in the lung, while for other folks it might represent a subset of these items, and for some it might just mean "probably pneumonia". Since we strive to avoid miscommunication that may affect clinical management, a term like "opacity" is favored since it tends to have a more consistent interpretation by all parties.
good mornning sir , please most of abreviation we dont know , excuse me to be mentioned and explained
thank you so much for this very informative discussion on basic bone radiologic imaging interpretations.
Thank you so much for your hard work! I would like to ask why we should specify the average value when measuring solid nodes. Why not specify the maximum long axis and the maximum short axis separately?
In their 2017 article "Recommendations for Measuring Pulmonary Nodules at CT: A Statement from the Fleischner Society", the Fleischner Society recommends: "the dimension of small pulmonary nodules (<10 mm) should be expressed as the average of maximal long-axis and perpendicular maximal short-axis measurements in the same plane. For larger nodules and masses, both long- and short-axis measurements should be recorded." The reason for their recommendation is probably because the solid lung nodule size thresholds that appear in the current follow-up CT recommendation tables published by the Fleischner Society (for incidental pulmonary nodules) and the American College of Radiology (for lung cancer screening) currently are *average* diameters, rather than short-axis or long-axis diameters. For example, a footnote at the bottom of the Fleischner Society 2017 Guidelines for Management of Incidentally Detected Pulmonary Nodules in Adults reads: "Dimensions are average of long and short axes, rounded to the nearest millimeter."
Also doctor, I'd like to mention your presentation in speaking is beyond outstanding and your command of the medical terminology as it relates to the English language is beyond excellent. Thank you so much for this combat makes me wish I was in med school to become a Radiologist. Thank you Mike and Los Angeles(you are an outstanding instructor).
Hello Dr. I'm an X-ray tech newly licensed in CT, this is an outstanding presentation, it's unbelievably important. And this attack, I appreciate this because it helps me to realize how important I need to spend time positioning the patient to get a great diagnostic film for the Radiologist. I'm trying to get a CT position, but looking at this makes me appreciate how basic Radiography is so important. Thank you Mike in Los Angeles
Traction Bronchiectasis: "good airways in a bad neighbourhood"
also, calcified modules are not of concern
Thank you. It’s really helpful.
This board review playlist was great! I will recommend it for future residents. I appreciate your videos and willingness to teach.
Sir plz make video on abdominal organs also. I'm new fellow from Bangladesh
Love the analogy with Google translate!
❤❤❤❤❤❤
Excellent
Really great work! Thanks
Absolutely brilliant as usual. I have all my residents listening to these talks 🙏🏾
Thank you so much for the brilliant presentations....
zojirushi thermos FTW
echoing other comments, great for boards as well as for differential building/pruning.
Can I have the presentation?
You can find a link to a PDF of all of these slides, just by going to the video and expanding the “Description” section underneath. You’ll find links of this type for almost every one of my talks in the Description area of each video.
Great video! This material helped me a lot. Have you thought about making some material with 1st, 3rd trimester or with some fetal abnormalities?
Very practical