MR urography (MRU) of non-dilated ureter with diuretic administration: Static fluid 2D FSE T2-weighted versus 3D gadolinium T1-weighted GE excretory MR

Roy, Catherine; Ohana, Mickaël; Host, Ph.; Alemann, Guillaume; Labani, Aïssam; Wattiez, Arnaud; Lang, Hervé

doi:10.1016/j.ejro.2014.08.001

Cited by 12 publications

(14 citation statements)

References 21 publications

Supporting

Mentioning

Contrasting

Unclassified

Order By: Relevance

“…Bu sekanslarlaelde edilen MR ürografininüriner sistem görüntülemede alternatif bir teknik olabileceği vurgulanmıştır (6,9,10,14).…”

Section: Discussionunclassified

“…Üriner sistem obstrüksiyonlarının tanısında çeşitli MR sekansları kullanılmaktadır (6). Bunlardan HASTE (half-fourieracquisationsingle-shot turbo spin-echo) ve RARE (rapidacquisitionwithrelaxationenhancement) sekanslarının hızlı görüntüleme yöntemleri olduğu ve durağan sıvıların incelenmesinde yüksek duyarlılık gösterdiği bildirilmiş-tir (7)(8)(9)(10). İntravenöz gadolinyum injeksiyonu yapılarak uygulanan T1A ekskretuar MRÜ ise hem dilate olmayan hem de orta derecede obstrükteürinertraktın değerlen-dirilmesinde son derece faydalı bilgiler vermektedir (11)(12)(13).…”

unclassified

See 1 more Smart Citation

Pediatrik Hastalarda Manyetik Rezonans Ürografi İle İntravenöz Piyelografinin Etkinliğinin Karşılaştırılması

Polat¹

2018

GenelTipDer

View full text Add to dashboard Cite

Pediatrik hastalarda manyetik rezonans ürografi ile intravenöz piyelografinin etkinliğinin karşılaştırılması -Polat G. ve Pirimoğlu B.Genel Tıp Derg 2018;28(2):76-80 76 Öz Amaç: İntravenözpiyelografi(İVP) böbrek fonksiyonlarını ve anatomik özelliklerini gösteren bir yöntemdir. Fakat iyonizan radyasyon içermesi nedeniylepediatrik yaş grubunda kullanılması uygun değildir. Bu nedenle son zamanlarda kullanımı yaygınlaşan manyetik rezonansürografi(MRÜ) ile üriner patolojiler değerlendirilmeye çalışılmaktadır. Bizde çalışmamızda MRÜ'ninüriner sistem dilatasyonlarını göstermekte İVP ile arasındaki farkları incelemeyi amaçladık. AbstractObjective: Intravenous pyelography (IVP) is a method of showing renal functions and anatomical features. However, it is not appropriate to use it in the pediatric age group because of ionizing radiation. For this reason, we are trying to evaluate urinary pathologies with magnetic resonance urography (MRU), which has become popular in recent years. In our study, we aimed to investigate the differences between MRU and IVU, showing dilution of urinary system. Materials and Methods:Male and female rats were administered with L-thyroxine intraperitoneally at a dose of 0.2 mg/kg for 21 days to induce hyperthyroidism. Morris water maze (MWM) was used to assess learning and memory performance. Results:There was no significant difference in the detection of pelvicalyceal dilatation between MRU and IVP (P <0.0001). MRU was found to be effective in evaluating parenchymal pathologies and in determining the underlying pathologies in patients with no nephrogram phase in IVP. Conclusion:There was no significant difference in the detection of pelvicalyceal dilatation between MRU and IVP (P <0.0001). MRU was found to be effective in evaluating parenchymal pathologies and in determining the underlying pathologies in patients with no nephrogram phase in IVP.

show abstract

“…Bu sekanslarlaelde edilen MR ürografininüriner sistem görüntülemede alternatif bir teknik olabileceği vurgulanmıştır (6,9,10,14).…”

Section: Discussionunclassified

unclassified

Pediatrik Hastalarda Manyetik Rezonans Ürografi İle İntravenöz Piyelografinin Etkinliğinin Karşılaştırılması

Polat¹

2018

GenelTipDer

View full text Add to dashboard Cite

show abstract

“…45 MRI has high spatial resolution, yielding a direct visualization of the sciatic nerve. 46 Although MRI has high sensitivity and specificity, 90 and 98%, respectively, for sciatic nerve involvement in extrapelvic endometriosis, 47 the sensitivity and specificity in diagnosing intrapelvic sciatic endometriosis remains unestablished. Nevertheless, MRI can be useful in differentiating sciatic endometriosis from a benign neurogenic tumor.…”

Section: Diagnosismentioning

confidence: 99%

Sciatic endometriosis: A narrative review of an unusual neurogynecologic condition

Gandhi

Wilson

Liang

et al. 2020

Journal of Endometriosis and Pelvic Pain Disorders

View full text Add to dashboard Cite

Endometriosis is a condition in which there is an ectopic growth of endometrial tissue. Sciatic endometriosis, otherwise known as catamenial sciatica, is a rare but exceedingly significant presentation of endometriosis. Symptoms include cyclic sciatic pain that peaks during the menstrual period; additionally, paresthesia, paresis, and areflexia may occur with this condition. Sciatic endometriosis can be presumptively diagnosed in response to empiric treatment (e.g. gonadotropin-releasing hormone analogs) or imaging studies, but a definitive diagnosis of sciatic endometriosis may occur from examining tissue obtained during surgery. Surgical removal of endometriosis from the sciatic nerve root can potentially eliminate symptoms while maintaining normal reproductive function, though poses particular surgical risks. Familiarity with this rare condition is paramount to making this diagnosis and the initiation of earlier treatment.

show abstract

“…[24][25][26] Static-fluid and excretory MRU are the 2 techniques mainly performed. 10,[22][23][24][25][26][27][28][29][30][31] Static-fluid MRU uses urine in the urinary tract as an intrinsic contrast medium and acquires T2-weighted (T2W) images with heavy T2W sequences such as singleshot fast spin echo, single-shot turbo spin echo, or half-Fourier rapid acquisition single-shot turbo spin echo without administration of contrast media. The long T2 relaxation time of the fluid provides high signal intensity of the urinary tract on static-fluid MRU.…”

mentioning

confidence: 99%

“…The long T2 relaxation time of the fluid provides high signal intensity of the urinary tract on static-fluid MRU. Thin-slice 24,[29][30][31] or thick-slice 24,[28][29][30][31] urography images are obtained with the breath-hold technique or 3-D respiratory-triggered sequence 24,26,31 can be used to acquire thin-slice images with higher spatial resolution and to create MIP or volume-rendered images. Because static-fluid MRU allows for the visualization of urine in the urinary tracts, it does not depend on renal function and can be used for the evaluation of the urinary tracts in patients with renal dysfunction.…”

mentioning

confidence: 99%

Comparison of static-fluid or excretory magnetic resonance urography with computed tomography urography for visualization of nondilated renal pelvises and ureters in healthy Beagles

Lee

Hyeong

Kim

et al. 2022

ajvr

View full text Add to dashboard Cite

OBJECTIVE To assess the usefulness of magnetic resonance urography (MRU) for the visualization of nondilated renal pelvises and ureters in dogs and to compare our findings for MRU versus CT urography (CTU). ANIMALS 9 healthy Beagles. PROCEDURES Dogs underwent CTU, static-fluid MRU, and excretory MRU, with ≥ 7 days between procedures. Contrast medium was administered IV during CTU and excretory MRU, whereas urine in the urinary tract was an intrinsic contrast medium for static-fluid MRU. For each procedure, furosemide (1 mg/kg, IV) was administered, and reconstructed dorsal plane images were acquired 3 minutes (n = 2) and 7 minutes (2) later. Images were scored for visualization of those structures and for image quality, diameters of renal pelvises and ureters were measured, and results were compared across imaging techniques. RESULTS Excretory MRU and CTU allowed good visualization of the renal pelvises and ureters, whereas static-fluid MRU provided lower visualization of the ureters. Distention of the renal pelvises and ureters was good in excretory MRU and CTU. Distention of the ureters in static-fluid MRU was insufficient compared with that in CTU and excretory MRU. Distinct artifacts were not observed in CTU and excretory MRU images. Static-fluid MRU images had several mild motion artifacts. CLINICAL RELEVANCE Our findings indicated that excretory MRU with furosemide administration was useful for visualizing nondilated renal pelvises and ureters of dogs in the present study. When performing MRU for the evaluation of dogs without urinary tract dilation, excretory MRU may be more suitable than static-fluid MRU.

show abstract

MR urography (MRU) of non-dilated ureter with diuretic administration: Static fluid 2D FSE T2-weighted versus 3D gadolinium T1-weighted GE excretory MR

Cited by 12 publications

References 21 publications

Pediatrik Hastalarda Manyetik Rezonans Ürografi İle İntravenöz Piyelografinin Etkinliğinin Karşılaştırılması

Pediatrik Hastalarda Manyetik Rezonans Ürografi İle İntravenöz Piyelografinin Etkinliğinin Karşılaştırılması

Sciatic endometriosis: A narrative review of an unusual neurogynecologic condition

Comparison of static-fluid or excretory magnetic resonance urography with computed tomography urography for visualization of nondilated renal pelvises and ureters in healthy Beagles

Contact Info

Product

Resources

About