ARFI on Testes @MEDIC CENTER, Nguyen Thien Hung et al
ARFI of TESTES at MEDIC CENTER
Nguyen Thien Hung, MD, Le Van Tai, MD, Phan Thanh Hai, MD
MEDIC Medical Center, HCMC, VIET NAM
Acoustic radiation force impulse imaging (ARFI) is a new technique for the sonographic quantifica-
tion of tissue elasticity. We applied ARFI elastography to investigate the stiffness of the normal and
MATERIALS & METHODS
Twenty male volunteers underwent normal B-mode sonography with ARFI elastometry of both tes-
tes using a Siemens Acuson S2000™ (Siemens Healthcare, Germany) system. And there were 12 cas-
es of testicular tumor and 03 cases of hematoma in our study. Results were statistically evaluated.
- From 40 normal testes of 20 male
individuals, mean elastic velocity VTQ
= 0.87+/- 0.11m/s (range 0.72-1.12 m/s)
- From 03 cases of hematoma, mean
elastic velocity VTQ =1.39+/-0.02m/s
ARFI elastometry provides the initial values of testicular stiffness in normal and pathologic status.
Further studies with more subjects may be required to define the normal range of values for normal
and pathologic groups.
Figure 1. SWE of a normal
testis, V= 0.74m/s
Figure 3. Testicular
tumor with VTI in
black color, more
clear appearance than
B-mode image and
VTQ= 2.02 m/s
Figure 2. Hematoma in the
upper pole of R. testis (16
days post trauma)
ARFI showed increasing stiffness of testes in all tumor cases and less stiffness in cases of hemato-
ma. But number of tumor cases is still small in our report. Further studies with more tumor sub-
jects may be required to define the value for testes tumor.
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Figure 4. Testicular
the intact testis with
- From 12 cases of testicular tumor, mean elastic velocity VTQ = 1.51+/- 0.18 m/s (range 1.26-
1.69m/s) with the meaning more stiffness than normal and hematoma testis. On VTI tumor are
harder the parenchyma (black color or blue code) (Fig.3, 4).
ARFI showed increasing stiffness of testes in all tumor cases [n=12] and less stiffness in cases of hematoma .