Diagnostic value of MR imaging in comparison to CT in the detection and differential diagnosis of renal masses: ROC analysis

Kreft, Burkhard; Müller-Miny, H; Sommer, Torsten; Steudel, A.; Vahlensieck, Martin; Novák, David; Muller, Bart; Schild, Hans H.

doi:10.1007/s003300050200

Cited by 53 publications

(20 citation statements)

References 24 publications

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“…Calcifications or calculi are difficult visualize with MR imaging [13,15,16], but this can be assessed by ultrasonography and/or a plain abdominal radiograph. The accuracy of MR imaging in the diagnosis of renal parenchymal lesions, such as cysts and tumors, has been demonstrated in other studies [25,26].…”

Section: Discussionmentioning

confidence: 95%

MR urography for the preoperative evaluation of living renal donors

Bakker

Kort

et al. 2002

Eur Radiol

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The purpose of this study was to assess the image quality and diagnostic value of MR urography in detecting abnormalities of the urinary collecting system relevant for the preoperative evaluation of living renal donors. Study subjects were selected from the existing intravenous urography (IVU) reports: 18 consecutive patients with a duplication or another abnormality of the collecting system and 20 consecutive patients with normal anatomy. They underwent a respiratory-triggered 3D T2-weighted fast spin-echo acquisition after oral administration of furosemide, without and with abdominal compression. The MR images were evaluated by two independent blinded observers. The IVU was used as the standard of reference. Image quality of the MR urograms with compression was overall better than those without compression, and the former were regarded as adequate for the evaluation of small filling defects and deformities of the pelvis and calyces in 76-81% of the kidneys and 74-79% of the patients. Both observers correctly diagnosed all 13 kidneys with a partial or complete duplication. The image quality of MR urography was inadequate to evaluate the calyces and pelvis for small filling defects or deformities in approximately 25% of the patients; however, the technique was accurate in the detection of abnormalities of the urinary collecting system relevant for the preoperative evaluation of living renal donors.

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Section: Discussionmentioning

confidence: 95%

MR urography for the preoperative evaluation of living renal donors

Bakker

Kort

et al. 2002

Eur Radiol

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“…For MRI, no such data exists. In the overall detection and differential diagnosis of renal masses, CT and MRI have been shown to be equal [85]. Thus, in the case of most tumors, the general algorithm for early detection is not clearly defined and is experiencing a change at the present time.…”

Section: Other Tumor Forms and Incidental Findingsmentioning

confidence: 97%

Total-body MR-imaging in oncology

Schaefer

Schlemmer

2006

Eur Radiol

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Although MRI is an effective modality in oncology, state-of-the-art total-body MRI (TB-MRI) in the past was infeasible in the diagnostic work-up, due to the need for repeated examinations with repositioning and separate surface coils to cover all body parts. To overcome this limitation, either a moving table platform in combination with the body-coil or a special designed rolling table platform with one body phased-array coil have been implemented with promising results for both tumor staging and metastases screening. Since 2004, state-of-the-art TB-MR imaging with high spatial resolution has become feasible using a newly developed 1.5 Tesla TB-MRI system with multiple receiver channels. This review gives an overview based on the recent literature as well as our own experience concerning the possibilities, challenges, and limitations of TB-MRI in oncology, emphasizing both oncological staging and early tumor detection in asymptomatic subjects.

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“…Wichtig im Zusammenhang mit dem Staging bei Nierenzellkarzinomen ist die Beurteilung der renalen Gefäßsituation, insbesondere die Abklärung einer möglichen Aus diesem Grund und wegen der schon erwähnten multiplanaren Schichtorientierung sowie des hohen Weichteilkontrastes kann die MRT bezüglich des prä-und postoperativen Stagings maligner Nierenerkrankungen als das bildgebende Verfahren der Wahl angesehen werden [9].…”

Section: Stagingunclassified

Magnetresonanztomographie in der Urologie

2004

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Due to low costs and common availability, ultrasonography and computed tomography still represent the most common diagnostic tools in uroradiology. However, magnetic resonance imaging (MRI) is gaining more and more importance since this imaging modality allows for a comprehensive examination of almost the complete spectrum of urologic diseases, including congenital malformations. The most important advantages of MRI are the free choice of slice orientation, high soft tissue contrast and high resolution as well as the lack of radiation. Technical progresses in hard and software components have led to a reduction in acquisition time, allowing for real-time imaging as well as MR angiography and MR urography with a significant reduction in motion artifacts. In addition, contrast enhanced MRI represents the imaging modality of choice in patients with reduced renal function or known allergy against iodinated contrast agent.

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Diagnostic value of MR imaging in comparison to CT in the detection and differential diagnosis of renal masses: ROC analysis

Cited by 53 publications

References 24 publications

MR urography for the preoperative evaluation of living renal donors

MR urography for the preoperative evaluation of living renal donors

Total-body MR-imaging in oncology

Magnetresonanztomographie in der Urologie

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