Cortical, Medullary, and Pelvocaliceal MR Renography with and without Diuretic Modification

Katzberg, Richard W.; Ivanović, Marija; Buonocore, Michael H.; Brock, John M.; Ryan, John M.

doi:10.1016/s1076-6332(03)80118-6

Cited by 3 publications

(2 citation statements)

References 21 publications

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“…Functional techniques that have been described include MR renography (3,(9)(10)(11)(12)(13)(14), the arterio-venous extraction (A/V) technique (13,(15)(16)(17)(18)(19), the Rutland-Patlak plot techniques (20,21), the MR gadolinium slope clearance measurement technique (22) and the dynamic MR perfusion functional assessment (23,24). Since the iodinated contrast media and gadolinium contrast media in current use are nearly identical in their pharmacokinetics and renal handling, either CT or MR provide competitive utilization.…”

Section: Reviewmentioning

confidence: 99%

MR determination of glomerular filtration rate in subjects with solitary kidneys in comparison to clinical standards of renal function: feasibility and preliminary report

Katzberg

Buonocore

Low

et al. 2009

Contrast Media & Molecular

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This study was conducted to demonstrate the feasibility of quantifying single kidney glomerular filtration rate (skGFR) by magnetic resonance (MR) by comparison to the clinical estimates of GFR in volunteer subjects with a single kidney. Seven IRB-approved subjects with a solitary kidney, stable serum creatinine (SCr) and a 24 h creatinine clearance (CrCl) volunteered to undergo an MR examination that determined renal extraction fraction (EF) with a breathhold inversion recovery echo planar pulse sequence and renal blood flow with a velocity encoded phase imaging sequence. The product of EF and blood flow determines GFR. These values were compared with the 24 h CrCl, estimated GFR by the modification of diet in renal disease (MDRD) regression analysis and the Cockroft-Gault (CG) determination of CrCl. The mean and standard deviation of differences between the MR GFR, MDRD and CG vs the 24 h CrCl were 12.3+/-35.7, -8.9+/-18.5 and 1.2+/-19.6, respectively. The Student t-test showed that none of the mean differences were statistically significant between techniques. This clinical investigation shows that MR can be used for skGFR determination in human subjects with comparable values to those derived from clinically used serum-based GFR estimation techniques.

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Section: Reviewmentioning

confidence: 99%

MR determination of glomerular filtration rate in subjects with solitary kidneys in comparison to clinical standards of renal function: feasibility and preliminary report

Katzberg

Buonocore

Low

et al. 2009

Contrast Media & Molecular

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“…2,10,17 Similarly, the improved resolution and decreased motion artifact afforded by PI have been shown to be useful in characterizing small adrenal gland lesions. [19][20][21][22][23][24][25] Others have attempted to determine single-kidney function by measuring the renal extraction fraction of gadolinium contrast agents and renal blood flow. Several authors have reported various techniques for noninvasively determining renal function with MRI.…”

Section: Genitourinary Tractmentioning

confidence: 99%

Parallel Imaging of the Abdomen

Margolis

Bammer²,

Chow³

2004

Topics in Magnetic Resonance Imaging

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Parallel imaging holds great potential for improving the quality of diagnostic abdominal MRI. The increased imaging speed afforded by parallel imaging can be translated into the obvious benefits of reduced scan time with set resolution and coverage, improved spatial resolution with set imaging time and coverage, increased anatomic coverage for a set imaging time and resolution, or some combination of the above. Additionally, the reduction in scan time can also allow some sequences that normally require multiple breath-holds to be performed with only one, or simply make breath-hold imaging possible for more patients. The decreased echo-train length allows for truer T2-weighting, less magnetic susceptibility artifact, and less blurring with echo-train imaging. Dynamic contrast-enhanced sequences can be acquired with improved temporal or spatial resolution. All of these potential advantages come with the trade-off of decreased signal-to-noise ratio, but for many patients, the benefits far outweigh the drawbacks and can vastly improve the diagnostic quality of abdominal MRI.

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CMR 2007: 12.01: Utilization of small molecular weight extracellular fluid markers, such as MR contrast media, to noninvasively acquire single kidney glomerular filtration rate: findings in human subjects with a solitary kidney

Katzberg

Buonocore

Low

et al. 2007

Contrast Media & Molecular

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Cortical, Medullary, and Pelvocaliceal MR Renography with and without Diuretic Modification

Cited by 3 publications

References 21 publications

MR determination of glomerular filtration rate in subjects with solitary kidneys in comparison to clinical standards of renal function: feasibility and preliminary report

MR determination of glomerular filtration rate in subjects with solitary kidneys in comparison to clinical standards of renal function: feasibility and preliminary report

Parallel Imaging of the Abdomen

CMR 2007: 12.01: Utilization of small molecular weight extracellular fluid markers, such as MR contrast media, to noninvasively acquire single kidney glomerular filtration rate: findings in human subjects with a solitary kidney

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