The ‘ring of fire’ Foley balloon
Previously, we talked about the utility of ‘twinkling sign or artifact’ in detection of kidney stones. Interestingly, balloon of the Foley catheter can also twinkle on color Doppler appearing like […]
Misplaced Foley catheter in a female patient
Below is a sonographic image of transverse view of the lower pelvis showing Foley balloon (arrow) outside (posterior to) the bladder wall in a woman. What is posterior to bladder […]
Misplaced Foley in the prostatic urethra
In this ultrasound image of long axis of the urinary bladder, Foley balloon (green arrow) is in the prostatic urethra resulting in urinary retention. Note the anechoic urine-filled bladder and […]
Ureterovesical junction stone
We have previously talked about ureteral jets and the twinkle artefact. Here is an excellent clip shared by Dr. Robert Jones demonstrating twinkle artefact in the right distal ureter region […]
Am I seeing two urinary bladders?
We previously talked about the double bladder sign in female patients indicative of ovarian torsion. Here are images from a middle-aged gentleman, where the suprapubic scan revealed two anechoic structures, […]
Ureteral jets
The intravesical ureteral jets, or the bladder jets represent the sonographic appearance of discrete boluses of urine entering the bladder, better detected using color Doppler. They are thought to result […]
Urinary bladder wall thickness: what is the number to remember?
It is not uncommon to see a thickened urinary bladder wall in cases of chronic bladder outlet obstruction. Have you ever wondered how thick is thick? In a study, a […]
Bladder ultrasound: calculation of volume
Sonographic evaluation of the urinary bladder should be performed in any patient with dilated collecting system or frequent urinary tract infections, especially in a male. The examination is performed with […]
Not every anechoic thing in the pelvis is urine!
In this pelvic area sonogram, the Foley balloon (arrow) appears to be located outside the urinary bladder suggesting malposition of the catheter. However, the fluid collection anterior to the Foley […]