Background: Uretric calculi was most commonly found associated with ureteric colic. It occurs due to low fluid
intake, frequent urinary tract infections and medicines that may crystallize within the urine. Ureteric calculi are
mostly composed of calcium which crystallizes in the kidney and moves down to ureter causing obstruction. The
prevalence of ureteric colic is increasing everyday. Over-utilization of Computed tomography is a growing
health concern because of the used of high radiation in computed tomography. Objective: To determine the
diagnostic accuracy of ultrasonography versus computed tomography for ureteric calculi among the adult
patients visiting Mayo hospital Lahore. Methods: This Cross-sectional descriptive study was conducted in the
Department of Radiology in Mayo hospital Lahore. All patients with ureteric colic (as per operational definition)
and with suspicion of ureteric calculus were included. The ct-scan machine of Hitachi (164 slices) and
Ultrasound machine Siemens was used to performing this research to determine the diagnostic accuracy of
ultrasonography versus computed tomography for ureteric calculi among the adult patients. Ureteric stones were
diagnosed on a trans-Abdominal scan by using of 5MHz frequency. Results: Total 78 patients with sign and
symptoms of ureteric calculi were imaged with ultrasonography and computed tomography, among them ureteric
calculi were found in 25 (34. 2%) patients with ultrasound. Ureteric calculi were found in 52(71. 2%) with
computed tomography scanning. The individuals of 17-75 years were mainly involved while most of them were
male patients. We observed that, computed tomography scanning is batter to diagnose ureteric calculi as
compared to ultrasonography. Ureteric stone is a kidney stone mostly small that normally moves down into the ureterusually composed of
undissolved mineral and can easily be stuck in a narrow part of the ureter and leads to the obstruction at any
point from the ureteropelvic junction (UPJ) toureterovesical junction (UVJ). These are a subset of the broader
topic of urolithiasis. Urolithiasis is common in patients who present with hematuria and/or acute pain located in
the flank areai. Acute ureteric colic is one of the worst pain a patient ever experiences in his/her lifeii. It is
estimated that up to 6% of women will experience one or more renal calculi episodes in their lives with a
recurrence rate of 50%. One in four patients with renal calculi has a family history of renal calculi a situation
that multiplies the risk of lithiasis by threeiii. Men are more commonly affected than womeniv. These patients
require periodic imaging studies to monitor the stone position and to assess for hydronephrosis. There is high
variability in determining the choice of imaging protocols to observe the progression of ureteral calculi for
following upv. Protocols guiding imaging use in the management of ureteral calculus disease are desirable
because of the potentially harmful cumulative effects of radiation exposure to patients and the increased cost of
high-resolution axial imaging moralities vi.
Computed tomography (CT) has become the primary imaging modality for evaluating acute flank pain and
suspected renal stone diseasevii. Because of its high sensitivity (95-97 %) and specificity (96-100 %) for urinary
tract calculi detectionviii. CT is of particular value for detecting ureteral calculi, which often are not visualized
with other imaging modalitiesix.
However, CT entails exposure to ionizing radiation with attendant long term cancer risk, 4-7 is associated with a
high rate of incidental findings that can lead to inappropriate follow-up referral and treatmentx. Although
computed tomography (CT) has gained widespread acceptance as the prime investigation having several
advantages over other imaging techniques (X-Ray, Ultrasound, Magnetic Resonance Imaging) xi.
Ultrasonography (USG) can serve as an alternate for initial screening in the patientsxii. Ultrasound (US) is pain
relief. Ultrasound (US) has limited diagnostic value in the assessment of patients with suspected renal stones
even when performed by experienced hands particularly in the evaluation of distal ureteric calcul. It can easily
identify the stones located in the pyeloureteric and vesicoureteric junctions(VUJ), as well as the complications
caused by stones such dilatation of pelvicalyceal system and / or ureter proximal to obstruction and infectionsxiii.
Medium and large renal lithiasis (> 5mm) can be easily detected with 2D ultrasonography due to the different
echogenicity with the adjacent parenchyma and the posterior acoustic shadowingxiv. Ultrasound accuracy could
also be lower in specific patient subgroups, such as in obese patients, women, and in specific age groups,
especially women of reproductive age x
Background:
Uretric
calculi was most
commonly
found associated with ureteric colic. It occurs due to low fluid
intake, frequent urinary tract infections and medicines that may crystallize within the urine. Ureteric calculi are
mostly
composed of calcium which crystallizes in the kidney and
moves
down to ureter causing obstruction. The
prevalence of ureteric colic is increasing
everyday
. Over-utilization of
Computed
tomography is a growing
health concern
because
of the
used
of high radiation in
computed
tomography. Objective: To determine the
diagnostic accuracy of ultrasonography versus
computed
tomography for ureteric calculi among the adult
patients visiting Mayo hospital Lahore. Methods: This Cross-sectional descriptive study
was conducted
in the
Department of Radiology in Mayo hospital Lahore. All
patients
with ureteric colic (as per operational definition)
and with suspicion of ureteric calculus
were included
. The ct-scan machine of Hitachi (164 slices) and
Ultrasound machine Siemens was
used
to performing this research to determine the diagnostic accuracy of
ultrasonography versus
computed
tomography for ureteric calculi among the adult
patients
. Ureteric
stones
were
diagnosed
on a trans-Abdominal scan by using of 5MHz frequency. Results: Total 78
patients
with
sign
and
symptoms of ureteric calculi
were imaged
with ultrasonography and
computed
tomography, among them ureteric
calculi
were found
in 25 (34. 2%)
patients
with ultrasound. Ureteric calculi
were found
in 52(71. 2%) with
computed tomography scanning. The individuals of 17-75 years were
mainly
involved while most of them were
male
patients
. We observed that,
computed
tomography scanning is batter to diagnose ureteric calculi as
compared to ultrasonography. Ureteric
stone
is a kidney
stone
mostly
small
that
normally
moves
down into the
ureterusually
composed of
undissolved mineral and can
easily
be stuck
in a narrow part of the ureter and leads to the obstruction at any
point from the
ureteropelvic
junction (
UPJ
)
toureterovesical
junction (
UVJ
). These are a subset of the broader
topic of
urolithiasis
.
Urolithiasis
is common in
patients
who present with hematuria and/or acute pain located in
the flank
areai
. Acute ureteric colic is one of the worst pain a
patient
ever experiences in his/her
lifeii
. It
is
estimated
that up to 6% of women will experience one or more renal calculi episodes in their
lives
with a
recurrence rate of 50%. One in four
patients
with renal calculi has a family history of renal calculi a situation
that multiplies the
risk
of
lithiasis
by
threeiii
.
Men
are more
commonly
affected
than
womeniv
. These patients
require periodic
imaging
studies to monitor the
stone
position and to assess for
hydronephrosis
. There is high
variability in determining the choice of
imaging
protocols to observe the progression of
ureteral
calculi for
following
upv
. Protocols guiding
imaging
use
in the management of
ureteral
calculus disease are desirable
because
of the
potentially
harmful cumulative effects of radiation exposure to
patients
and the increased cost of
high-resolution axial
imaging
moralities vi.
Computed tomography (CT) has become the primary
imaging
modality for evaluating acute flank pain and
suspected renal
stone
diseasevii
.
Because
of its high sensitivity (95-97 %) and specificity (96-100 %) for urinary
tract calculi
detectionviii
. CT is of particular value for detecting
ureteral
calculi, which
often
are not visualized
with other
imaging
modalitiesix
.
However
, CT entails exposure to ionizing radiation with attendant long term cancer
risk
, 4-7
is associated
with a
high rate of incidental findings that can lead to inappropriate follow-up referral and
treatmentx
. Although
computed tomography (CT) has gained widespread acceptance as the prime investigation having several
advantages over other
imaging
techniques (X-Ray, Ultrasound, Magnetic Resonance
Imaging)
xi.
Ultrasonography (USG) can serve as an alternate for initial screening in the
patientsxii
. Ultrasound (US) is pain
relief. Ultrasound (US) has limited diagnostic value in the assessment of
patients
with suspected renal stones
even when performed by experienced hands
particularly
in the evaluation of distal ureteric
calcul
. It can
easily
identify the
stones
located in the
pyeloureteric
and
vesicoureteric
junctions(
VUJ
),
as well
as the complications
caused by
stones
such dilatation of
pelvicalyceal
system and / or ureter proximal to obstruction and
infectionsxiii
.
Medium and large renal
lithiasis
(>
5mm
) can be
easily
detected with 2D ultrasonography due to the
different
echogenicity with the adjacent
parenchyma
and the posterior acoustic
shadowingxiv
. Ultrasound accuracy could
also
be lower in specific
patient
subgroups, such as in obese
patients
, women, and in specific age groups,
especially
women of reproductive age x