Authors

Matt Jones, MD, MS, RDMS, RDCS

Tae Kim, MD, RDMS

 

COntributors

matt jones, MD

GIORGI TSEREDIANI, MD

Shravan Kumar, MD

 

Renal / Bladder

RIGHT KIDNEY

 

LONG AXIS (LONGITUDINAL) VIEW

Probe in the right lower intercostal space (8th to 11th) in the mid-axillary line

  • Probe marker toward patient’s head and aim the probe slightly posteriorly

  • Locate liver-kidney interface

  • Right kidney is often found more anteriorly than left kidney

  • Rock probe anteriorly and posteriorly to scan the entire kidney in longitudinal section

    *** The liver is a very large acoustic window... The probe can come anterior as far as anterior axillary line with adequate renal views. 


 

ANIMATION


 

SHORT AXIS (TRANSVERSE) VIEW

 

  • Probe in the right lower intercostal space (8th to 11th) in the mid-axillary line

    • Rotate the probe 90°, probe marker points toward the ceiling

    • Rock the probe superiorly and posteriorly to scan the entire kidney in transverse section


 

ANIMATION


 

LEFT KIDNEY

 

LONG AXIS (LONGITUDINAL) VIEW

 

  • Probe in the left lower intercostal space (6th -9th rib) at the posterior-axillary line. Probe contact needs to be posterior (retroperitoneal organ).  

    • Probe marker toward patient’s head and aim the probe slightly posteriorly

    • Locate spleen-kidney interface

    • Left kidney is often found more superiorly and posteriorly than right kidney

    • Rock probe anteriorly and posteriorly to scan the entire kidney in longitudinal section


 

ANIMATION


 

SHORT AXIS (TRANSVERSE) VIEW

 

  • Probe in the left lower intercostal space (6th to 9th) in the mid-axillary line

    • Rotate the probe 90°, probe marker points toward the floor

    • Rock the probe superiorly and posteriorly to scan the entire kidney in transverse section


 

ANIMATION


 

HYDRONEPHROSIS

 

NORMAL KIDNEY


 

ANIMATION


 

MILD HYDRONEPHROSIS


 

ANIMATION


 

MODERATE HYDRONEPHROSIS


 

ANIMATION


 

SEVERE HYDRONEPHROSIS

ANIMATION


 

BLADDER

 

LONGITUDINAL VIEW

 

  • Probe placed midline just superior to the pubic bone

    • Probe marker toward patient’s head

    • Apply downward pressure and slide up probe slightly superiorly

    • Fan the probe left and right to scan the entire bladder in sagittal section


 

ANIMATION


 

TRANSVERSE VIEW

 

  • Probe placed midline just superior to the pubic bone

    • Rotate the probe 90°, probe marker toward patient’s right

    • Rock the probe superiorly and inferiorly to scan the entire bladder in transverse section


 

ANIMATION

Ureteral Jets 

 


 

CALCULATING BLADDER VOLUME

 

BLADDER VOLUME = LENGTH (SAGITTAL) × HEIGHT (TRANSVERSE) × WIDTH (TRANSVERSE) × 0.625

 

SAGITTAL MEASUREMENT

 

Calculate maximum length


 

ANIMATION


 

TRANSVERSE MEASUREMENT

 

Calculate maximum height and width


 

ANIMATION



 

BMI 57

 

Foley in place with inflated balloon. Bladder is decompressed.