Blueberry juice: preliminary evaluation as an oral contrast agent in gastrointestinal MR imaging.

Hiraishi, Kumiko; Narabayashi, Isamu; Fujita, Osamu; Yamamoto, K.; Sagami, A; Hisada, Yohei; Saika, Yoshinori; Adachi, I; Hasegawa, Hideo

doi:10.1148/radiology.194.1.7997537

Cited by 90 publications

(64 citation statements)

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“…Previous researchers have used oral negative contrast agents (including blueberry and pineapple juices) to suppress the high signal of the gastrointestinal tract [4,[7][8][9] . Although blueberry juice has been shown to be a welltolerated and effective oral contrast agent during MRCP, pure blueberry juice is not widely available.…”

Section: Brief Articlementioning

confidence: 99%

Use of carbon dioxide as negative contrast agent for magnetic resonance cholangiopancreatography

Chen¹

2011

WJR

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AIM:To evaluate the effects of using CO2 as negative contrast agent in decreasing the overlapping on the pancreaticobiliary system from intestinal fluids. METHODS:We evaluated the magnetic resonance cholangiopancreatography (MRCP) images in 117 patients divided into two groups (group 1, without taking gas producing crystals to produce CO2, n = 64; group 2, with CO2, n = 53) in a 1.5T unit using MRCP sequence.Anatomic locations of intestinal fluids distribution, overlapping with common bile duct (CBD) and pancreatic duct (PD), were evaluated. RESULTS:In the group with CO2, the decrease in distribution of intestinal fluids was significant in the gastric antrum (P = 0.001) and duodenal bulb (P < 0.001), but not in the gastric fundus and body and in the second portion of the duodenum (P = 1.000, P = 0.171, and P = 0.584 respectively). In the group with CO2, the decrease in overlapping with CBD was significant (P < 0.001), but the decrease in overlapping with PD was not (P = 0.106).CONCLUSION: MRCP with carbon dioxide as negative contrast agent would decrease intestinal fluids in the gastric antrum and duodenal bulb, thereby decreasing overlapping with the CBD.

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Section: Brief Articlementioning

confidence: 99%

Use of carbon dioxide as negative contrast agent for magnetic resonance cholangiopancreatography

Chen¹

2011

WJR

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“…The subject took a prone position during the scan, holding blueberry juice inside the mouth as an oral contrast medium. It is known that blueberry juice can serve as a contrast medium for MRI [18]. In addition, the subject bit on a small wooden chip between the upper and lower teeth so that the interdental space could be visualized.…”

Section: Mri Experiments 1: Dental Scans For Extractingmentioning

confidence: 99%

A method of tooth superimposition on MRI data for accurate measurement of vocal tract shape and dimensions

Takemoto

Kitamura

Nishimoto

et al. 2004

Acoust. Sci. & Tech.

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Measurement of vocal tract area functions from MRI data requires a technique for tooth visualization because the teeth are as transparent as air in the images. In this article, a new method is proposed to accurately superimpose the teeth onto MRI volume data. Upper and lower tooth images with the surrounding bony structure are obtained by scanning a subject holding a contrast medium in the oral cavity. They are superimposed onto the target volume data via a three-dimensional transformation using landmarks sampled from the tooth images and target MRI data. The accuracy of the dental image superimposition is ensured by the minimization of the error volume, which is the mismatch volume of the dental image overlapping the surrounding soft tissue. The method is evaluated using five operators sampling the landmarks. Results show that the error volume is significantly reduced to a nearly constant value regardless of the operator's skill.

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“…In the latter study, participants held blueberry jelly juice inside their mouth as an oral contrast medium while lying in a prone position during the scanning of their teeth. Since blueberry juice is rich in manganese and gives a high MR signal [5], the boundary of the teeth can thus be exactly identified on the MR images. The participants, however, must endure holding the blueberry jelly juice inside their mouth for around 10 minutes for scanner calibration and volumetric data scanning.…”

Section: Introductionmentioning

confidence: 99%

Dental imaging using a magnetic resonance visible mouthpiece for measurement of vocal tract shape and dimensions

Kitamura

Nishimoto²,

Fujimoto³

et al. 2011

Acoust. Sci. & Tech.

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Blueberry juice: preliminary evaluation as an oral contrast agent in gastrointestinal MR imaging.

Abstract: At appropriate concentrations, blueberry juice has the potential to be an effective oral contrast agent for MR imaging.

Cited by 90 publications

References 0 publications

Use of carbon dioxide as negative contrast agent for magnetic resonance cholangiopancreatography

Use of carbon dioxide as negative contrast agent for magnetic resonance cholangiopancreatography

A method of tooth superimposition on MRI data for accurate measurement of vocal tract shape and dimensions

Dental imaging using a magnetic resonance visible mouthpiece for measurement of vocal tract shape and dimensions

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