A comparative study between arterial spin labeling and CT perfusion methods on hepatic portal venous flow

Katada, Yoshiaki; Shukuya, Toshiro; Kawashima, Miho; Nozaki, Miwako; Imai, Hiroshi; Natori, Takenori; Tamano, Masaya

doi:10.1007/s11604-012-0127-y

Cited by 16 publications

(20 citation statements)

References 22 publications

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“…Comparison of our results to the SL-MRI literature is hindered by the low number of peer-reviewed studies [12] and the concise information in the studies published in proceedings [10,11,13].…”

Section: Comparison To the Literaturementioning

confidence: 98%

“…After empirical optimization (see Fig. 2) of the inversion time, a TI of 2500 ms (similar to [12]) was used in the PVSL experiments to achieve optimal signal-to-noise ratios (SNRs). Image read-out was a multislice 2D spin-echo echo-planar imaging (SE-EPI) sequence with SPIR fat suppression (TE=18.4 ms, EPI factor 53, manual TR=6500 ms, flip angle 90°, matrix 128×128, voxel size 2.9×2.9 mm, slice thickness 8.0 mm, slice gap 0.8 mm, parallel imaging factor 2, slices acquired in ascending order).…”

Section: Mri Techniquementioning

confidence: 99%

“…Regarding the dual inflow, the arterial and portal venous inflow could be selectively labelled and therefore be separately imaged and quantified. Very few studies have described SL-MRI of the liver in humans, with promising results [10][11][12][13]. Only the study by Katada et al [12] was published in a peer-reviewed journal.…”

Section: Introductionmentioning

confidence: 99%

“…Very few studies have described SL-MRI of the liver in humans, with promising results [10][11][12][13]. Only the study by Katada et al [12] was published in a peer-reviewed journal. Katada et al [12] examined selectively portal perfusion (5 healthy subjects) and compared the results with computed tomography (CT) portography in the same patients.…”

Section: Introductionmentioning

confidence: 99%

“…Only the study by Katada et al [12] was published in a peer-reviewed journal. Katada et al [12] examined selectively portal perfusion (5 healthy subjects) and compared the results with computed tomography (CT) portography in the same patients. Only Gach et al [10] have studied selective arterial and portal venous perfusion, but in just a single healthy subject.…”

Section: Introductionmentioning

confidence: 99%

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Arterial and portal venous liver perfusion using selective spin labelling MRI

et al. 2015

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Purpose To investigate the feasibility of selective arterial and portal venous liver perfusion imaging with spin labelling (SL) MRI, allowing separate labelling of each blood supply. Methods The portal venous perfusion was assessed with a pulsed EPISTAR technique and the arterial perfusion with a pseudo-continuous sequence. To explore precision and reproducibility, portal venous and arterial perfusion were separately quantified in 12 healthy volunteers pre-and postprandially (before and after meal intake). In a subgroup of 6 volunteers, the accuracy of the absolute portal perfusion and its relative postprandial change were compared with MRI flow measurements of the portal vein. Results The portal venous perfusion significantly increased from 63±22 ml/100g/min preprandially to 132±42 ml/100g/ min postprandially. The arterial perfusion was lower with 35± 22 preprandially and 22±30 ml/100g/min postprandially. The pre-and postprandial portal perfusion using SL correlated well with flow-based perfusion (r 2 =0.71). Moreover, postprandial perfusion change correlated well between SL-and

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Section: Comparison To the Literaturementioning

confidence: 98%

Section: Mri Techniquementioning

confidence: 99%

Section: Introductionmentioning

confidence: 99%

Section: Introductionmentioning

confidence: 99%

Section: Introductionmentioning

confidence: 99%

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Arterial and portal venous liver perfusion using selective spin labelling MRI

et al. 2015

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Temporal assessment of pancreatic blood flow and perfusion following secretin stimulation using noninvasive MRI

Cox

Smith

Chowdhury

et al. 2015

Magnetic Resonance Imaging

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Update on state‐of‐the‐art for arterial spin labeling (ASL) human perfusion imaging outside of the brain

Taso

Aramendía‐Vidaurreta

Englund

et al. 2023

Magnetic Resonance in Med

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This review article provides an overview of developments for arterial spin labeling (ASL) perfusion imaging in the body (i.e., outside of the brain). It is part of a series of review/recommendation papers from the International Society for Magnetic Resonance in Medicine (ISMRM) Perfusion Study Group. In this review, we focus on specific challenges and developments tailored for ASL in a variety of body locations. After presenting common challenges, organ-specific reviews of challenges and developments are presented, including kidneys, lungs, heart (myocardium), placenta, eye (retina), liver, pancreas, and muscle, which are regions that have seen the most developments outside of the brain. Summaries and recommendations of acquisition parameters (when appropriate) are provided for each organ. We then explore the possibilities for wider adoption of body ASL based on large standardization efforts, as well as the potential opportunities based on recent advances in high/low-field systems and machine-learning. This review seeks to provide an overview of the current state-of-the-art of ASL for applications in the body, highlighting ongoing challenges and solutions that aim to enable more widespread use of the technique in clinical practice.

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A comparative study between arterial spin labeling and CT perfusion methods on hepatic portal venous flow

Abstract: Our results demonstrate a significant fair correlation between unenhanced MR hepatic portal perfusion imaging using ASL and CT perfusion during SMA portography.

Cited by 16 publications

References 22 publications

Arterial and portal venous liver perfusion using selective spin labelling MRI

Arterial and portal venous liver perfusion using selective spin labelling MRI

Temporal assessment of pancreatic blood flow and perfusion following secretin stimulation using noninvasive MRI

Update on state‐of‐the‐art for arterial spin labeling (ASL) human perfusion imaging outside of the brain

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