Diagnosis of Nonopaque Calculi by Computed Tomography

Segal, Arthur J.; Spataro, Robert F.; Linke, Charles A.; Frank, Irwin N.; Rabinowitz, Ronald

doi:10.1148/129.2.447

Cited by 64 publications

(13 citation statements)

References 9 publications

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“…They found that CT could define a calculus as small as 5 mm. with greater density discrimination that conventional radiography or tomography [7]. The HU measured for a calculus was significantly higher than that for tumor or clots.…”

Section: Discussionmentioning

confidence: 80%

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EVALUATION OF RENAL STONES BY COMPUTED TOMOGRAPHY AND ITS CORRELATION WITH URINE pH AND BIOCHEMICAL ANALYSIS

Bonigala¹,

S²

2018

IJCBR

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Section: Discussionmentioning

confidence: 80%

“…In 1978 Segal et a1 [7] used CT to 0 f 41 -29 distinguish calculus from tumor or clots. They found that CT could define a calculus as small as 5 mm.…”

Section: Discussionmentioning

confidence: 99%

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EVALUATION OF RENAL STONES BY COMPUTED TOMOGRAPHY AND ITS CORRELATION WITH URINE pH AND BIOCHEMICAL ANALYSIS

Bonigala¹,

S²

2018

IJCBR

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“…Although IVP has remained traditional "gold standard" in the evaluation of renal pain for decades, its use has now fallen out of favour with new imaging technique NCCT owing not only its high accuracy [6][7][8] of detection of stone including translucent stone associated secondary changes in excretory system but also detecting alternate diagnosis including life threatening conditions. In this study IVP is not used in order to avoid reaction of contrast, its nephrotoxicity especially in already obstructed excretory system due to stone in deranged kidney function.…”

Section: Introductionmentioning

confidence: 99%

Use and Efficasy of Different Imaging Techniques in Flank Pain

Gupta¹

2017

IOSR JDMS

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“…A US também permite a detecção de outras condições como litíase biliar, pancreatite agu- (19) . Os cálculos radiotransparentes têm densidade de mais de 80 UH, sendo detectados pela TC (20) . No entanto, cálculos de indinavir, os quais são relativamente radiolucentes, não têm sido detectados (19) .…”

Section: Introductionunclassified

Avaliação dos métodos de imagem no diagnóstico da urolitíase: revisão da literatura

et al. 2004

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Freitas RMC et al. Radiol Bras 2004;37(4):291294291 do abdome associada à ultra-sonografia (US) são apropriadas na abordagem diagnóstica da dor lombar aguda e podem ser utilizadas como métodos alternativos quando recursos como a TC helicoidal são limitados (2) . O objetivo deste trabalho é revisar a literatura sobre o tema, abordando as opções e as perspectivas diagnósticas. A literatura publicada nos últimos 30 anos comparando os métodos atualmente disponí-veis para a avaliação de pacientes com dor lombar aguda foi revisada, com atenção aos seguintes métodos: a radiografia simples de abdome, a UE, a US e a TC helicoidal. O objetivo deste trabalho foi comparar a tomografia computadorizada helicoidal com os métodos imaginológicos atualmente disponíveis para a abordagem dos pacientes com dor lombar aguda e revisar brevemente as características fisiopatológicas da urolitíase e a evolução da sua abordagem diagnóstica. Foi revista a literatura publicada nos últimos 30 anos, comparando os seguintes métodos: radiografia simples de abdome, urografia excretora, ultra-sonografia e tomografia computadorizada helicoidal. Esta última se mostrou mé-todo de alta sensibilidade e especificidade para o diagnóstico de urolitíase, sendo que, virtualmente, todos os cálculos são identificados por este método, exceto em pacientes em uso de indinavir. A radiografia simples de abdome associada à ultra-sonografia têm acurácia semelhante à tomografia computadorizada helicoidal, contudo, esta foi superior como método de avaliação isolado. A literatura sugere que a tomografia computadorizada helicoidal é útil na avaliação de pacientes com dor lombar aguda quando disponível, possibilitando também o diagnóstico diferencial entre as várias doenças que simulam os sintomas de urolitíase. Unitermos: Dor lombar aguda; Radiografia simples do abdome; Tomografia computadorizada helicoidal; Ultrasonografia do trato urinário; Urografia excretora; Urolitíase. DISCUSSÃOEvaluation of imaging methods in the diagnosis of urolithiasis: review of the literature. The aim of this study is to compare helical computed tomography with imaging studies currently used to evaluate patients with acute low back pain. In addition, we briefly review the pathophysiology of urolithiasis. The literature published in the last 30 years was reviewed, and the following methods were discussed: plain abdominal radiographs, intravenous pielography, ultrasound of the urinary tract, and helical computed tomography. Helical computed tomography showed high sensitivity and specificity for detecting urolithiasis, virtually showing all stones, except in patients receiving indinavir. The accuracy of plain abdominal radiographs associated with ultrasound was similar to helical computed tomography, although the latter showed superiority as an isolated method. Data from literature suggest that whenever helical computed tomography is available, it is helpful in the evaluation of low back pain and also allows differential diagnosis between conditions that mimic the symptoms of urolithiasis. Key...

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Diagnosis of Nonopaque Calculi by Computed Tomography

Cited by 64 publications

References 9 publications

EVALUATION OF RENAL STONES BY COMPUTED TOMOGRAPHY AND ITS CORRELATION WITH URINE pH AND BIOCHEMICAL ANALYSIS

EVALUATION OF RENAL STONES BY COMPUTED TOMOGRAPHY AND ITS CORRELATION WITH URINE pH AND BIOCHEMICAL ANALYSIS

Use and Efficasy of Different Imaging Techniques in Flank Pain

Avaliação dos métodos de imagem no diagnóstico da urolitíase: revisão da literatura

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