Magnetic resonance urography: a pictorial overview

García-Valtuille, Roberto; García-Valtuille, Ana; Abascal, Faustino; Cerezal, Luís; Argüello, M C

doi:10.1259/bjr/21075982

Cited by 25 publications

(12 citation statements)

References 11 publications

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“…Zum Konkrementnachweis ist sie sowohl bei einem selektiven Patientengut mit besonderen Anforderungen an den Strahlenschutz (Patienten mit chronisch rezidivierender oder therapieresistenter Urolithiasis, Schwangere und Kinder) als auch bei Patienten mit reduzierter Nierenfunktion bzw. Kontrastmittelallergie indiziert [52,54,55]. Sensitivität und Spezifität können an die des nativen MDCT heranreichen [22].…”

Section: Magnetresonanztomografie-urografie (Mru)unclassified

Multidetektor-Computertomografie der Urolithiasis: Technik und Ergebnisse

Karul

Heuer

Regier

2012

Fortschr Röntgenstr

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The diagnosis of acute urolithiasis results from unenhanced multidetector computed tomography (MDCT). This test analyses the functional and anatomical possibility for passing an ureteral calculi, the localization and dimension of which are important parameters for further therapy. Alternatively chronic urolithiasis could be ruled out by magnetic resonance urography (MRU). MRU is the first choice especially in pregnant women and children because of radiation hygiene. Enhanced MDCT must be emphasized as an alternative to intravenous urography (IVU) for diagnosis of complex drainage of urine and suspected disorder of the involved kidney. This review illustrates the principles of different tests and the clinical relevance thereof.

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Section: Magnetresonanztomografie-urografie (Mru)unclassified

Multidetektor-Computertomografie der Urolithiasis: Technik und Ergebnisse

Karul

Heuer

Regier

2012

Fortschr Röntgenstr

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“…The most common MR urographic techniques used to display the urinary tract can be divided into two categories: (a) static-fluid MR urography (also known as static MR urography, T2-weighted MR urography, or MR hydrography), and (b) excretory MR urography (also known as T1-weighted MR urography) (1,3,4).…”

Section: Mr Urographic Techniquesmentioning

confidence: 99%

MR Urography: Techniques and Clinical Applications

Leyendecker¹,

Barnes²,

Zagoria³

2008

RadioGraphics

150

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Magnetic resonance (MR) urography comprises an evolving group of techniques with the potential for allowing optimal noninvasive evaluation of many abnormalities of the urinary tract. MR urography is clinically useful in the evaluation of suspected urinary tract obstruction, hematuria, and congenital anomalies, as well as surgically altered anatomy, and can be particularly beneficial in pediatric or pregnant patients or when ionizing radiation is to be avoided. The most common MR urographic techniques for displaying the urinary tract can be divided into two categories: static-fluid MR urography and excretory MR urography. Static-fluid MR urography makes use of heavily T2-weighted sequences to image the urinary tract as a static collection of fluid, can be repeated sequentially (cine MR urography) to better demonstrate the ureters in their entirety and to confirm the presence of fixed stenoses, and is most successful in patients with dilated or obstructed collecting systems. Excretory MR urography is performed during the excretory phase of enhancement after the intravenous administration of gadolinium-based contrast material; thus, the patient must have sufficient renal function to allow the excretion and even distribution of the contrast material. Diuretic administration is an important adjunct to excretory MR urography, which can better demonstrate nondilated systems. Static-fluid and excretory MR urography can be combined with conventional MR imaging for comprehensive evaluation of the urinary tract. The successful interpretation of MR urographic examinations requires familiarity with the many pitfalls and artifacts that can be encountered with these techniques.

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“…En febrero de 2007, la Agencia Española de Medicamentos y Productos Sanitarios (AEMPS) emitió una nota informativa sobre novedades en cuanto a la seguridad en la administración del gadolinio (en especial la gadodiamida, Omniscan®) 1 para la realización de RM, asociándola a la aparición de Fibrosis Sistémica Nefrogénica (FSN) 2 , también llamada Dermopatía Fibrosante Nefrogénica (DFN) 3 .…”

Section: Cartas Al Directorunclassified

Referencia al artículo “Uso de la urografía por resonancia magnética en el estudio del aparato urinario frente a la urografía convencional”

Sánchez-Martín

2007

Actas Urológicas Españolas

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Magnetic resonance urography: a pictorial overview

Cited by 25 publications

References 11 publications

Multidetektor-Computertomografie der Urolithiasis: Technik und Ergebnisse

Multidetektor-Computertomografie der Urolithiasis: Technik und Ergebnisse

MR Urography: Techniques and Clinical Applications

Referencia al artículo “Uso de la urografía por resonancia magnética en el estudio del aparato urinario frente a la urografía convencional”

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