Can a dual-energy computed tomography predict unsuitable stone components for extracorporeal shock wave lithotripsy?
Korean Journal of Urology
;
: 644-649, 2015.
Artigo
em Inglês
| WPRIM
| ID: wpr-47848
ABSTRACT
PURPOSE:
To assess the potential of dual-energy computed tomography (DECT) to identify urinary stone components, particularly uric acid and calcium oxalate monohydrate, which are unsuitable for extracorporeal shock wave lithotripsy (ESWL). MATERIALS ANDMETHODS:
This clinical study included 246 patients who underwent removal of urinary stones and an analysis of stone components between November 2009 and August 2013. All patients received preoperative DECT using two energy values (80 kVp and 140 kVp). Hounsfield units (HU) were measured and matched to the stone component.RESULTS:
Significant differences in HU values were observed between uric acid and nonuric acid stones at the 80 and 140 kVp energy values (p or =90%, calcium oxalate dihydrate group monohydrate<90%). Significant differences in HU values were detected between the two groups at both energy values (p<0.001).CONCLUSIONS:
DECT improved the characterization of urinary stone components and was a useful method for identifying uric acid and calcium oxalate monohydrate stones, which are unsuitable for ESWL.
Texto completo:
DisponíveL
Índice:
WPRIM (Pacífico Ocidental)
Assunto principal:
Ácido Úrico
/
Litotripsia
/
Oxalato de Cálcio
/
Cálculos Renais
/
Cálculos Ureterais
/
Tomografia Computadorizada por Raios X
/
Imagem Radiográfica a Partir de Emissão de Duplo Fóton
/
Seleção de Pacientes
Tipo de estudo:
Estudo prognóstico
Limite:
Adulto
/
Idoso
/
Feminino
/
Humanos
/
Masculino
Idioma:
Inglês
Revista:
Korean Journal of Urology
Ano de publicação:
2015
Tipo de documento:
Artigo
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