How To Read CT Sinus Scans Like An Expert
Vložit
- čas přidán 19. 09. 2007
- www.NoseSinus.com.
Dr Kevin Soh explains the nose and sinus anatomy using slices from a CT sinus scan.
3 Mount Elizabeth, #07-02, Mount Elizabeth Medical Centre, Singapore 228510
www.google.com.sg/maps/place/...
If you have any comments, PLEASE do not be afraid to ask. Please SUBSCRIBE, SHARE, and COMMENT on this video.
0:27 - Cut number 1: CT scans are read the same way you would look at someone’s face.
1:11 - Cut number 2: The frontal bone. The nasal bone and pyriform aperture.
1:33 - Cut number 3: The right and left frontal sinuses, separated by the inter-sinus septum. The frontal sinuses are air spaces within the frontal bone. The nasal septum is cartilaginous in front, but bony behind. In this cut, we see a little bit of the bony nasal septum. In this cut, most of the nasal septum is still made up of cartilage. In later cuts, we will see more of the bony nasal septum. We also see the front end of the inferior turbinates.
2:26 - Cut number 4: Notice that the frontal sinus becomes smaller with this cut. The maxillary sinus is an air space within the maxillary bone. The front part of the anterior ethmoid sinus. The lacrimal sac which drains tears from the eye into the nose. The inferior turbinate. The inferior turbinate is made up of bone and erectile tissue that can expand and contract. The nasal septum is now more bony. The upper bony segment of the nasal septum is called the perpendicular plate of ethmoid (or PPE). The lower bony segment is the vomerine crest. Later, both the perpendicular plate of ethmoid and vomerine crest will meet and join together.
3:13 - Cut number 5: The frontal sinus is no longer visible. We now see the frontal lobe of the brain. We start to see the front end of the middle turbinate. The anterior ethmoid sinus. The maxillary sinus. The middle and inferior turbinates.
3:38 - Cut number 7: The olfactory area (which is important for smell and taste) comes into view. Because this area is narrow, it is also called the olfactory cleft. Nerves from the olfactory cleft pass upwards to enter the brain. The bone here is very thin. The bone is perforated by small branches of the olfactory nerve. Since it has a perforated and sieve-like appearance, it is called the cribriform plate. The roof of the ethmoid sinus is very thin. Care must be taken during sinus surgery not to damage this thin bone. The bone between the eye and ethmoid sinus is also very thin. It is called the lamina papyracea which means “paper thin layer”. The middle turbinate is attached to the roof of the nose, and therefore, to very thin bone. It is very easy to fracture this thin roof during middle turbinate surgery. The surgeon must avoid pulling on the middle turbinate too hard! The maxillary sinus opening (ostium) is very narrow. This narrowing is caused by the proximity between the ethmoid sinus and the uncinate process. Uncinate means “hook shape”. The ostium often becomes blocked, resulting in poor drainage and sinusitis. Sinus surgery widens this opening by removing the anterior ethmoid sinus and uncinate process. Infra-orbital nerve which receives sensory information from the skin of the cheek. Care must be taken to avoid injury to this nerve during maxillary sinus surgery. The anterior ethmoid sinus is compartmentalized into many cavities by thin partitions or septae. The ethmoid sinus is so named because it looks like a sieve. Ethmoid means “sieve”. For this reason, the ethmoid sinus is also called the ethmoid labyrinth.
5:21 - Cut number 9: This is where the anterior ethmoid sinus ends, and the posterior ethmoid sinus begins. The middle turbinate no longer attaches to the roof of the nose. Instead, it is now attached to the side wall of the nasal cavity. This marks the separation between the anterior and posterior ethmoid sinuses. The upper teeth is separated from the maxillary sinus by a thin plate of bone. If this bone is breached or dehiscent, there is risk of sinusitis of dental origin.
6:02 - Cut number 10: In this cut, the sphenoid sinus is seen. Pituitary fossa and pituitary gland. The sphenoid sinus is an air space within the sphenoid bone. The sphenoid sinus is so named because it has the shape of a butterfly. The optic nerve. The lateral and medial pterygoid plate. The ramus, coronoid process, and angle of mandible. No more turbinates are seen. The last remaining bit of nasal septum is seen.
6:46 - Cut number 12: We leave the nasal cavity, and enter the postnasal space (or nasopharynx). “Nose cancer”, or more appropriately called nasopharyngeal carcinoma (NPC), originates from the nasopharynx. Since there is no separation by the nasal septum, there is only one common chamber. The Eustachian tube opening.
7:04 - Quiz - Jak na to + styl
Everything about this video is so perfect. The music, the visuals, the explanation, the signaling, the speed of the text; i could go on forever. THANK YOU from the bottom of my heart. I enjoy watching ct scans of sinuses when my nose is stuffed i don't know why and i enjoyed this thoroughly. The quiz at the end was a nice touch too
But the speed of the text I concur sure, taking into account that I am Italian so this is not my mother tongue.
Thank you, Doctor. You've increased my understanding of the structures within the nasal and sinus cavities immensely. This will make watching FESS videos even more enjoyable now!
Fabulous! I got the information I was seeking AND a bonus mellow jazzy tune to start my day off right. Thank you. Very well done!
Great video,Dr.Soh... There are always so many questions about the terms that come from the scan report and many find the scan itself pretty difficult to read. This video has been very useful!
Great vid Dr. Soh! This is an excellent and fun way for medical students and residents to gain the important intricacies of a paranasal sinus CT. You should consider doing one for neck CT too!
very good presentation & music also gives us soothing effect
Awesome presentation Doctor! You've increased my understanding of a complex topic.
I have no medical background and I understood this! And it was paced very nicely. I stopped reading when "My Cherie Amore" came on though.
Thank you, Dr. Soh. It's a very helpful video.
Very special and nicely showed lots of things just with visuals and text🙏😍
very nice video, Helping the Medical faternity and thus helping the patients.
Great presentation. Thank you.
Have had posterior epistaxis episodes for past week.
Had further blood tests and CT scan of sinuses.
Awaiting results.
Thank you doctor. It was very helpful video.
Cool. Very nice presentation; easy to understand. I feel like an expert already :)
Thanks!
A very nice and useful video, thanks too much for your.
Thank you! Very informative video.
maxillary, ethmoid, sphenoid, and frontal.
Total 4 sinuses
U r way of explanation Good Dr tq very much
Awesome!
nice video with soothing song
thank you so much it helps me alot ^-^
Thank you... relax music
fantastic
Looked this up by way of Google, just so I'd know a little something about the scans I got done today in an ongoing effort to address my sinus headaches. Fascinating stuff! If this scan is more or less ordinary, I certainly seem to have a couple of malformed spots (and a fantastically lopsided "butterfly" :p). It will be very interesting to find out, when I go back, if I read the the images correctly.
Thanks very much for posting, Doctor! :)
Lovely video content! Sorry for butting in, I would love your initial thoughts. Have you tried - Yenamilla Sniffing Reformed (should be on google have a look)? It is a smashing one of a kind product for curing nasal polyps permanently and naturally without the normal expense. Ive heard some great things about it and my work buddy after a lifetime of fighting got cool results with it.
Very nice, however I think the coronoid process of the mandible is labeled the angle of the mandible.
Besides everything, love the music :))
It's average at best.
THAAAAAAAAAAAAAANX ; VERY HELPFUL
Thank u doctor
@Dr Kevin is it bony window or soft tissue window?
❤️ Doc please indicate the haller cells and agger nasi
Thankiew so much!!!!!!!!!!1
I had my sinuses CT scan on September 1,2021.
Is it possible to see normal mucus membrane of the paranasal sinus in ct scan, if yes how much (mm) is normal, and then we say pathology (chronic sinusitis).
thanx
Doctors address and consultation procedure.please mention for a bangalore patient.
music is so disturbng
does this guy has a large inferior turbinate on his right side? Requires turbinate colbaltion or laser? Which one would you choose for the cilia process to be the best after surgery?
Would like to know who the Jazz artist is, really like the music.
Sounds like Brazilian music, e.g., bossa nova.
Found a different rendition: My Cherie Amour - czcams.com/video/RNbOfttqVEE/video.html
Uhhh, that first cut showed a deviated septum. Just like mine was before surgery.
My 5 year son had PNS CT scan i'm worried because after CT beginning he moved so I had to go with him to fix his head the CT was repeated but the first dose was just for seconds .?how harmful is it for him? Did he take the same amount of radiation twice? I'm very concerned
interesting choice of music
now I know, experts read CT sinus with jazz hahaha thank you
Pathetic, they just trying to get that CZcams money... 👎
But the inferior turbinate is bone why its gray I don’t understand someone answer me im dying
@Rickf777 Sounds a little like Sade.
Nice explanation but background music is distrubing
Mute and read
Thank god for science and the smart people out there. This would be alien technology back then aha.
Ugh. Bebel Gilberto from Brazil - Bossa Nova technically rather than "jazz"
Can't read mine, how can u tell if sinuses are blocked or infected? Anyone? I've tried to read my ct but can't make sense of it
Your ENT who took the CT scan should've filled you in......
If you need to know more you MUST have a nose culture done or allergy tests to determine exactly what's causing your infection (sinus problems)
4
Is it possible to see fungal balls inside the sinuses with a CT scan?
It should be seen when the doctor or ENT puts the camera up there probably.
👏
Informative but music is annoying
very helpful and informative but too fast...many thanks
Too fast????
should slow it down=too fast to read all the nice info
You can reduce speed. Go to the "wheel" settings at top right corner and adjust playback speed.
No surprise, boring Dr office music!
no need of these music here, if some 1 would have spoken it , it would have been better
Shivam Gupta agreed!
The music almost seems like I'm being laughed at. I have a massive tumor in my sinus(size of a lime)and it's 90% likely it's metastasized from somewhere else so I'm in no mood for regurgitative sounding Stevie Wonder covers, It's enough to make me vomit.
How are you doing now? Has your situation improved?
I don t understand the stupid music...