Ultrasonography for ureteral stone detection in patients with or without caliceal dilatation

Kameda, Tomohiro; Kawai, Fukiko; Taniguchi, Nobuyuki; Mori, Ikuo; Ono, Masahiro; Tsukahara, Noriko; Kobori, Yasuyuki; Yoshida, H.; Wagai, Kazuko; Numao, Atsuko

doi:10.1007/s10396-009-0243-1

Cited by 4 publications

(3 citation statements)

References 22 publications

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“…Although US was less sensitive than CT for the diagnosis of ureterolithiasis, bedside US in emergency departments is justified as the initial imaging modality. Moreover, whether the detection of the stone itself in addition to hydronephrosis with point-of-care US actually improves the accuracy of the diagnosis requires further investigation [ 43 ].…”

Section: Reviewmentioning

confidence: 99%

Overview of point-of-care abdominal ultrasound in emergency and critical care

Kameda¹,

Taniguchi

2016

j intensive care

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Point-of-care abdominal ultrasound (US), which is performed by clinicians at bedside, is increasingly being used to evaluate clinical manifestations, to facilitate accurate diagnoses, and to assist procedures in emergency and critical care. Methods for the assessment of acute abdominal pain with point-of-care US must be developed according to accumulated evidence in each abdominal region. To detect hemoperitoneum, the methodology of a focused assessment with sonography for a trauma examination may also be an option in non-trauma patients. For the assessment of systemic hypoperfusion and renal dysfunction, point-of-care renal Doppler US may be an option. Utilization of point-of-care US is also considered in order to detect abdominal and pelvic lesions. It is particularly useful for the detection of gallstones and the diagnosis of acute cholecystitis. Point-of-case US is justified as the initial imaging modality for the diagnosis of ureterolithiasis and the assessment of pyelonephritis. It can be used with great accuracy to detect the presence of abdominal aortic aneurysm in symptomatic patients. It may also be useful for the diagnoses of digestive tract diseases such as appendicitis, small bowel obstruction, and gastrointestinal perforation. Additionally, point-of-care US can be a modality for assisting procedures. Paracentesis under US guidance has been shown to improve patient care. US appears to be a potential modality to verify the placement of the gastric tube. The estimation of the amount of urine with bladder US can lead to an increased success rate in small children. US-guided catheterization with transrectal pressure appears to be useful in some male patients in whom standard urethral catheterization is difficult. Although a greater accumulation of evidences is needed in some fields, point-of-care abdominal US is a promising modality to improve patient care in emergency and critical care settings.

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Section: Reviewmentioning

confidence: 99%

Overview of point-of-care abdominal ultrasound in emergency and critical care

Kameda¹,

Taniguchi

2016

j intensive care

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“…Our results are similar to those obtained by various other authors. 23,24 In the study done by Kameda T.et.al, the ureteric stone detection rates were 73% with calyceal dilatation and 44% without dilatation. 23 In another study by Özden E.et.…”

Section: Discussionmentioning

confidence: 99%

“…23,24 In the study done by Kameda T.et.al, the ureteric stone detection rates were 73% with calyceal dilatation and 44% without dilatation. 23 In another study by Özden E.et. al the detection rate of ureteric stones by USG in grade 1 hydronephrosis was 65.9 %, those with grade 2 hydronephrosis group was 78 % and those with grade 3 hydronephrosis were 95 %.…”

Section: Discussionmentioning

confidence: 99%

Detection rate of ureteric stones with ultrasonography and relationship with grade of hydronephrosis

Kafle¹

2018

Asian J Med Sci

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Background: Ultrasound scanning can serve as reliable, basic first line mode of imaging techniques in detecting ureteric stone in patients with hydronephrosis and grade them accordingly with or without need of other imaging techniques.Aims and Objective: To evaluate the relationship between the degree of hydronephrosis and the detection rates of ureteral stones with ultrasonography in computed tomography or intravenous urography proven cases of ureteric calculi.Materials and Methods: This was a prospective observational study involving 75 patients with computed tomography or intravenous urography diagnosis of ureteric calculi. Both kidneys were observed by ultrasonography to evaluate the intrarenal collecting systems for hydronephrosis.Thereafter, the ureters were evaluated in four different locations to find any stone. The hydronephrosis was graded as mild, moderate and severe according to the dilatation of the pelvic calyceal system with or without stones. Detection rate of ureteric calculi was then estimated.Results: A total of 75 cases were evaluated. Stones were clearly observed in 51 of 59 (86.4%) patients with calyceal dilatation, whereas stones were detected in 9 of 16 (56.3%) patients without dilatation (p<0.05). Out of 75 patients, 38 (50.7%) had stones in the ureterovesical junction, 12 (16%) had stones in the proximal ureter, 5(6.7%) in the iliac cross, 5(6.7%) in distal ureter and 15(20%) were undetected. Out of 15 undetected stones, 8(13.6%) had calyceal dilatation and 7(43.8%) without calyceal dilatation.Conclusion: The ultrasonography detection rate of ureteral stones was high in patients with calyceal dilatation. The whole ureter should be scanned in patients with calyceal dilatation for detection of ureteral stones. Even when patients have no calyceal dilatation, it is still considered to be useful to scan the ureterovesical junction.Asian Journal of Medical Sciences Vol.9(3) 2018 17-20

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