Unenhanced helical CT for renal colic - is the radiation dose justifiable?

Denton, Erika R. E.; Mackenzie, Alistair; Greenwell, Tamsin; Popert, R.; Rankin, Sheila

doi:10.1016/s0009-9260(99)90829-2

Cited by 104 publications

(68 citation statements)

References 14 publications

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“…The mean stone diameters were 6.2 (range, 4-18) mm in group A and 6.6 (range, 3-20) mm in group B (P > .05). In the clinical follow up, the mean time for passage of the stones was 7.4 (range, [3][4][5][6][7][8][9][10][11][12][13][14][15][16][17][18][19][20] days.…”

Section: Resultsmentioning

confidence: 99%

“…[2][3][4] Conversely, spiral CT has some disadvantages because it is a method that includes ionizing radiation and also is more expensive than ultrasonography. 5 Because of ionizing radiation, it is contraindicated in pregnant patients. 8 Ultrasonography has also been used for detecting ureteral stones and has advantages of being a noninvasive, radiation-free, and universally available method.…”

Section: Discussionmentioning

confidence: 99%

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Is Fluid Ingestion Really Necessary During Ultrasonography for Detecting Ureteral Stones?

Özden

Göğüş²,

Türkölmez³

et al. 2005

Journal of Ultrasound in Medicine

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Objective. Ultrasonographic evaluation of ureteral stones is usually performed after fluid ingestion for filling the bladder to visualize the ureterovesical junction better. We hypothesized that water ingestion may decrease the imaging quality of ultrasonography for detecting ureter stones. In our prospective randomized study, the accuracy of ultrasonography for detecting ureteral stones performed with or without fluid intake were evaluated. Methods. The study population comprised 150 consecutive patients thought to have ureteral stones who underwent ultrasonography. Patients were divided into 2 groups. Group A patients ingested 500 mL of water to distend the bladder before ultrasonographic examination. Group B patients were restricted from drinking any water at least 4 hours before the procedure. Results. Ultrasonography showed 35 (67.30%) of 52 stones in group A and 68 (93.15%) of 73 stones in group B. The difference of detection rates between the 2 groups was statistically significant (P < .001). The greatest improvement in detection rates was noted in the middle ureter stones. The evaluated sensitivity and specificity rates for group A were 67% and 82%, respectively, and those for group B were 93% and 94%. When the 2 methods were compared, total accuracy of ultrasonography increased from 71% in group A to 93% in group B. Conclusions. This prospective randomized study showed that the diagnostic accuracy of ultrasonography for detection of middle ureteral stones increased significantly when performed without any water ingestion before the procedure. We recommend that patients thought to have ureteral stones should be first examined without any fluid ingestion.

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Section: Resultsmentioning

confidence: 99%

Section: Discussionmentioning

confidence: 99%

Is Fluid Ingestion Really Necessary During Ultrasonography for Detecting Ureteral Stones?

Özden

Göğüş²,

Türkölmez³

et al. 2005

Journal of Ultrasound in Medicine

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show abstract

“…Üç film çekilen İVP'deki dozun 2-3 katı kadar radyasyona maruz kalma, dezavantajlarından birisidir (41). Bir kere bu dozda radyasyon almanın yaşam boyu malignansi riskine 1/4000 ilave yapacağı bildirilmiştir (42). Standart doz BT teknikleri yanında düşük doz (%50) ve düşük ötesi doz (%95) teknikleri ile taş araştırması yapılabildiği ve sadece taş ile ilgili neticelere bakıldığında satndart doz BT sonuçları ile karşılaştırılabilir olduğu görülmüştür (43)(44)(45).…”

Section: Discussionunclassified

Comparison of Non Enhanced Computed Tomography with Ultrasound in Patients with Renal Colic

Çakıroğlu¹,

Eyupoglu²,

Hazar³

et al. 2013

JAREM

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ÖZETAmaç: Acil servise yan ağrısı ile başvuran hastalarda spiral bilgisayarlı tomografi (BT) ile ultrasonografinin (USG) üreter taşını göstermedeki tanısal etkinliğini karşılaştırmayı amaçladık.Yöntemler: Ocak 2012 ile Haziran 2012 tarihleri arasında acil servise ve üroloji polikliniğine tek ya da iki taraflı yan ağrısı, karın ağrısı,kasık ağrısı şikayeti ile başvuran ve renal kolik olduğu şüphelenilen hastalar retrospektif olarak incelenerek çalışmaya dahil edildi. Hastaların yapılan ultrason, tomografi ve tam idrar tetkikleri incelendi. Ultrason yapılıp taş tespit edilemeyen ve sonra tomografi yapılan hastalar çalışmaya alındı.Bulgular: Çalışmaya dahil edilen 138 hastanın yaşları ortalaması 35,3±10,8 (7-68), taş çapları 6,12±2,68 (3-17) mm, taş çapına göre ayrılan Grup 1'de 63 hasta yaş ortalaması 33,1±10,7 ve taş çapı ortalaması 3,93±0,98 mm olarak bulundu. Grup 2'de 75 hastanın yaş ortalaması 37,1±10,9 ve taş çapı ortalaması 7,96±2,24 mm idi. Grup 1'de BT'nin sensivitesi %96 (72/75) ve ultrasonun sensivitesi %56 (76) olarak bulundu. Grup 2'de BT'nin sensivitesi %97 (/63) ve ultrasonun sensivitesi %64 (63) tespit edildi. Taşların bulunduğu anatomik lokalizasyonuna göre gruplamada A grubunda (böbrekler) 47 hastanın yaşları ortalaması 36,0±9,4 ve taş çapları 5,52±0,43 mm, B grubunda (pelvis ve üst üreter) 23 hastanın yaşları ortalaması 38,10±11,1 ve taş çapları 7,87±1,98, C grubunda (orta üreter) 25 hastanın yaşları ortalaması 34,5±10,2 ve taş çapları 6,02±1,33 mm, D grubunda (alt üreter) 43 hastanın yaş ortalaması 33,4±11,9 ve taş çapları 5,86±2,33 mm idi.Sonuç: Bilgisayarlı tomografi acil servise renal kolik şikayeti ile başvuran hastalardaki üriner sistem taşlarını tespit etmede USG'den daha etkilidir. Bununla birlikte, yatak başı kullanılan ve invazif olmayan USG, acil servislerde üriner taşların tespitinde ilk seçenek olarak kullanılabilir. Bilgisayarlı tomografi, ultrason sonucu negatif gelen hastalar için kullanışlı olabilir. (JAREM 2013; 3: 31-5) Anahtar Sözcükler: Spiral bilgisayarlı tomografi, ultrasonografi, üreter taşı, renal kolik ABSTRACT Objective: The aim of the study is to compare the efficacy of non enhanced computed tomography (NECT) with ultrasound (US) imaging in the assessment of ureteral stone in patients admitted to emergency department with flank pain.Methods: Between January 2012 and June 2012, the data of patients admitted to the urology outpatient clinic or emergency department with uni or bilateral flank and/or groin pain were included in the study. The data of US, NECT and urinanalysis were retrospectively reviewed. Patients whose stones were not detected on US examination and refered to NECT examination were included in the study. Results:The mean age and stone size of the 138 patients included in the study were 35.3±10.8 (7-68), 6.12±2.68 (3-17), respectively. The patients were distributed according to stone size; the mean age, stone size of 63 patients in group I and group II were 33.1±10.7, 3.93±0.98 mm and 37.1±10.9, 7.96±2.24 mm respectively. NECT, US sensitivities in Grou...

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“…Hence, NCCT cannot be used in paediatric age group and in pregnant females. In addition, because patients with stone disease are often relatively young and may thus be repeat stone formers who may thus require multiple NCCT examinations during their life time, there should be an effort to reduce the radiation dose of CT 20 . The effective dose for a KUB and IVP has been reported to be approximately 1.3 and 3 mSv respectively, by Mettler et al (2008) 21 .…”

Section: Use and Efficasy Of Different Imaging Techniques In Flank Painmentioning

confidence: 99%

Use and Efficasy of Different Imaging Techniques in Flank Pain

Gupta¹

2017

IOSR JDMS

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Unenhanced helical CT for renal colic - is the radiation dose justifiable?

Cited by 104 publications

References 14 publications

Is Fluid Ingestion Really Necessary During Ultrasonography for Detecting Ureteral Stones?

Is Fluid Ingestion Really Necessary During Ultrasonography for Detecting Ureteral Stones?

Comparison of Non Enhanced Computed Tomography with Ultrasound in Patients with Renal Colic

Use and Efficasy of Different Imaging Techniques in Flank Pain

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