ความชุกของโรคนิ่วในท่อไตที่ตรวจด้วยเครื่องเอกซเรย์คอมพิวเตอร์ระบบทางเดินปัสสาวะแบบไม่ใช้สารทึบรังสี ในโรงพยาบาลพระนครศรีอยุธยา

Chompoonuch Thongthong

Authors

Chompoonuch Thongthong Phranakorn Sri Ayutthaya Hospital, Phranakorn Sri Ayutthaya Province

Keywords:

prevalence, ureteric stone, non-contrast computed tomography of kidneys, ureters and bladder

Abstract

Objective : To determine the prevalence and risk factors of ureteric stone detected by non-contrast computed tomography of kidneys, ureters and bladder in Phranakorn Sri Ayutthaya Hospital.

Method : A descriptive cross-sectional study was performed. 146 symptomatic patients who received a non-contrast computed tomography of kidneys, ureters and bladder had been investigated between January 2018 to December 2019. All patients’ images were reviewed by one radiologist. Data recorded included gender, age, location of ureteric stone, size of ureteric stone, urinary tract obstruction, hydronephrosis, hydroureter, perinephric fat stranding, periureteric fat stranding and soft tissue rim sign. Descriptive analysis was used for reporting the prevalence of ureteric stone. The risk factors were analysed by Chi-square test and Fisher’s exact test.

Results : 52 patients with ureteric stone were found (35.6%). 88.5% of the patients were males. An average age was 51.7 years (S.D. = 13.3). 38.5% of ureteric stones were located mostly in the distal ureter. A 4 millimeter diameter in size of ureteric stone was the most common (23.1%).
It was found in 84.6% of patients with ureteric stone and urinary tract obstruction and the most detectable sign was hydroureter. Gender, age, urinary tract obstruction, hydronephrosis, hydroureter, perinephric fat stranding, periureteric fat stranding and soft tissue rim sign were the main risk factors for detection of ureteric stone. (P value < 0.05)

Conclusion : A lot of prevalence of ureteric stones from computed tomography in symptomatic patients. The study found that sex, age, urinary tract obstruction, hydronephrosis, hydroureter, perinephric fat stranding, periureteric fat stranding and soft tissue rim sign were associated with the detection of ureteric stones. These factors are very useful to help the doctor diagnose ureteric stone correctly.

Key words : prevalence, ureteric stone, non-contrast computed tomography of kidneys, ureters and bladder

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