Dedicated low-field MRI: a promising low cost-technique

Arbogast-Ravier, S.; Xu, Fangjun; Choquet, Philippe; Brunot, B.; Constantinesco, A.

doi:10.1007/bf02510797

Cited by 13 publications

(7 citation statements)

References 8 publications

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“…It is based on an open, small, water-cooled resistive magnet (Drusch, Poissy, France), with a homogeneous imaging zone (± 5 ppm) of about 10 × 10 cm in area and 6 cm in height and an MR 3030 imaging console (SMIS, Guilford, UK). The acquisition and reconstruction software as well as the MRI sequences were developed in our laboratory 10 . Owing to the perpendicular orientation of the main magnetic field with respect to the sample access, we developed solenoidal coils, ranging from 1.5 cm to 12.5 cm in diameter.…”

Section: Methodsmentioning

confidence: 99%

Low‐field dedicated magnetic resonance imaging: a potential tool for assisting perinatal autopsy

Langer

Choquet

Ravier

et al. 1998

Ultrasound in Obstet & Gyne

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Although the practice of perinatal autopsy has increased in recent years, examination of the fetus and especially of the fetal brain during the first trimester or the beginning of the second trimester remains difficult. Postmortem highresolution images of the brain of a normal and an abnormal fetus of the same gestational age (22 weeks) were obtained with a low-field (0.1 T) dedicated magnetic reson-

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Section: Methodsmentioning

confidence: 99%

Low‐field dedicated magnetic resonance imaging: a potential tool for assisting perinatal autopsy

Langer

Choquet

Ravier

et al. 1998

Ultrasound in Obstet & Gyne

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“…The 0.1 T main magnetic field is produced using a watercooled resistive magnet (Bouhnik SAS, Vélizy-Villacoublay, France) [22]. The 800 kg-magnet measures 70 cm × 70 cm in width and 105 cm in height.…”

Section: 1 T Mri Device Coils and Acquisition Parametersmentioning

confidence: 99%

Low field magnetic resonance imaging in rat in vivo

Breton¹,

Goetz²,

Choquet³

et al. 2008

IRBM

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“…MRIs were acquired using a dedicated 0.1T resistive magnet (Bouhnik SAS, Velizy-Villacoublay, France) [4], as previously described in [5]. During imaging procedures, mice were maintained under gaseous anesthesia (isoflurane 1-1.5% in air) in a warmed-up MR-compatible technical cell dedicated to small animal imaging (Minerve, Esternay, France), which aimed at maintaining the animal homeostasis and standardized the animal positioning.…”

Section: Data Acquisition Setupmentioning

confidence: 99%

Vectorial multi-phase mouse brain tumor segmentation in T1-T2 MRI

Israël-Jost

Breton

Angelini

et al. 2008

2008 5th IEEE International Symposium on Biomedical Imaging: From Nano to Macro

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An automated, level-set based, segmentation framework is proposed in this work for computation of tumoral volumes on mice brain bearing gliomal tumors. T1 and T2 weighted MRI images were acquired to monitor tumor growth, at different time points. We developed an original multi-phase and multi-channel segmentation method, based on the level set framework of Chan and Vese, to facilitate the estimation of tumoral volumes. A clinical study comparing manual and segmented volumes on 18 mice demonstrate the adequacy of the multi-channel segmentation and its superiority over single-T1 channel automated segmentation in terms of measurement accuracy and correlation.

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Dedicated low-field MRI: a promising low cost-technique

Cited by 13 publications

References 8 publications

Low‐field dedicated magnetic resonance imaging: a potential tool for assisting perinatal autopsy

Low‐field dedicated magnetic resonance imaging: a potential tool for assisting perinatal autopsy

Low field magnetic resonance imaging in rat in vivo

Vectorial multi-phase mouse brain tumor segmentation in T1-T2 MRI

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