Clinical Imaging

11/09/2024

11/09/2024

Happy world Radiology 🎊 day Fellas

03/25/2024

If you are just looking for the presence of flow. B-Flow does that very well too.

Left Image is Triplex Imaging : B-Mode, Color Mode and Pulse Wave Spectral Mode.
Right Image is Triplex Imaging : B-Mode, B-Flow Mode and Pulse Wave Spectral Mode.

12/23/2023

Anatomical Ovarian Variant

L-Shaped O***y

Normal ovarian variant giving the appearance of two “arms.”

***y

10/26/2023

Retinal detachment is a detachment of the retina from the underlying pigmented choroid

There are different subtypes of retinal detachment

-Rhegmatogenous retinal detachment
-Retinal break
-Lattice degeneration
-Tractional retinal detachment
-Exudative retinal detachment

Rhegmatogenous retinal detachment is the most common in the 6th and 7th decade of life but can occur at any age and affects more male than female. It is most commonly caused by posterior vitreous detachment and trauma.

On ultrasound, retinal detachment appears as a bright, continuous, smooth and somewhat folded membrane within the vitreous, which is reflective and freely moving(less mobile than posterior vitreous detachment)on real-time imaging. Total or extensive detached retina has a typical triangular shape with insertion into the optic disc, such as the one in the clip attached.

Aside the obvious Retinal Detachment, what else do you see ?

10/26/2023

Just a fine looking Thrombus 😐

09/26/2023

27 y/o male.
Left Scrotal Discomfort.
Right Testicle Volume 14.96ml
Left Testicle Volume 7.06ml
Area in focus is left pampiniform plexus
Patient is supine and Acquisition is done on Valsalva maneuver.
Grade this in the comments. 😁

09/12/2023

Here I made a simulation of a typical pulse wave doppler artifact.

Image A showed an example of pulse wave doppler mirror image artifact. This is caused when the sample volume and angle correct cursor are not aligned with the direction of flow, but kept in position where it defects flow in both directions(antegrade, retrograde).

The mirror artifact is now corrected in B, by aligning the sample volume and angle correction cursor to a specific flow direction. The signal can be seen to show flow in the antegrade direction(forward flow)

Full explanation
👇 👇 👇
https://youtu.be/VHEjZnqSWfo

08/28/2023

Pulse wave doppler Aliasing is common problem usually encountered while interrogating vessels with pulse wave.

Image (a) showed a typical example of pulse wave aliasing.

PRF was too low = 1395.

This caused wrapping of the signal. As the sampled velocity is above the Nyquist limit .

In image (b) Aliasing has been corrected by raising the PRF value to 6250. This is a major effective solution to pulse wave aliasing.

The sampled signal must be consistently below the Nyquist limit.

For more detailed explanation on pulse doppler techniques

👇 👇 👇 👇 👇

https://youtu.be/VHEjZnqSWfo

08/17/2023

This is an image of pulse doppler demonstrating the peak systolic velocity (PS or PSV) and end diastolic velocity (ED or EDV).

The PS is the highest point in the waveform while the ED is the lowest point in the wave just before a new peak.

Yellow calipers showed the correct measurement sites.

08/05/2023

Image A showed normal color box steer, hence carotid artery lumen is adequately filled with homogenous color signal.

Notice how there is loss of signal in the lumen of the carotid artery in Image B, the primary reason for this is incorrect color box steering. The color box here does not align with the direction of flow. Also note how the color signal is inhomogeneously represented.

Detailed explanation 👇 👇 👇

https://youtu.be/puyELt1l7H4

07/30/2023

Color box size should just be enough to cover the region of interest.

Color box should be steered to the direction of flow in order to increase sensitivity of the color doppler signal.
Detailed explanation 👇 👇 👇
https://lnkd.in/dnyBtSrz