Mandibular canal visibility using a plain volumetric interpolated breath-hold examination sequence in MRI

Deepho, Chutamas; Watanabe, Hiroshi; Sakamoto, Junichiro; Kurabayashi, Tohru

doi:10.1259/dmfr.20170245

Cited by 7 publications

(2 citation statements)

References 16 publications

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“…Q-LSC was <1 at 3-min delay leads to concerns that the result could be influenced by insufficient breath hold, body movement, and poor physical condition due to patient's fatigue after several randomized short-span scans or a long study time. 19,20 We considered that an HBP image wherein Q-LSC of ≥1.5 could be obtained when performing a smooth study, thereby increasing the throughput with an early decision for a super delay. a b Fig.…”

Section: Discussionmentioning

confidence: 99%

Prediction of Sufficient Liver Enhancement on the Gadoxetate Disodium-enhanced Hepatobiliary Phase Imaging Using Transitional Phase Images and Albumin–bilirubin Grade

et al. 2021

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To investigate whether the contrast enhancement effect in hepatobiliary phase (HBP) images can be predicted using transitional phase (3-min delay) images on liver magnetic resonance imaging (MRI) based on the quantitative liver-spleen contrast ratio (Q-LSC) and albumin-bilirubin (ALBI) grade. Methods: Overall, 212 patients (124 men and 88 women; mean age 66.7 ± 11.1 years) who underwent blood tests (assessed within 1 month of performing MRI) were included; patients with diffuse tumor, hepatectomy, splenectomy, Gamna-Gandy bodies in the spleen, and movement artifacts were excluded. Q-LSC was calculated using the signal intensity of the liver divided that of the spleen. Q-LSC > 1.5 (cut-off value) indicates a relatively higher sensitivity for detecting of hepatic lesions. To predict the contrast enhancement effect in HBP using Q-LSC of 3-min delay images, Q-LSC of 10-and 15-min delay images were compared for each ALBI grade based on Q-LSC of 3-min delay images. Furthermore, to verify the accuracy of this prediction, the proportion of cases with Q-LSC > 1.5 in 10-and 15 min delay images was calculated based on Q-LSC on 3-min delay images. Results: The higher the Q-LSC on the 3-min delay image, the higher was the Q-LSC on its 10-and 15-min delay images. The proportion of cases with Q-LSC > 1.5 in 10-and 15-min delay images was higher for ALBI grade 1 than for ALBI grades 2 and 3 even in the same Q-LSC on 3-min delay images. Q-LSC was <1 in a 3-min delay image and <1.5 in a 15-min delay image in 62.2% of patients with ALBI grade 1 and 82.1% of patients with ALBI grades 2 and 3. Conclusion: The liver contrast enhancement effect in HBP images could be predicted using a 3-min delay image based on Q-LSC and ALBI grade.

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Section: Discussionmentioning

confidence: 99%

Prediction of Sufficient Liver Enhancement on the Gadoxetate Disodium-enhanced Hepatobiliary Phase Imaging Using Transitional Phase Images and Albumin–bilirubin Grade

et al. 2021

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“…Wallner J. et al [25] использовали метод автоматической обработки изображений, основанный на глубоком обучении нейронных сетей, что получило довольно широкий отклик среди других исследователей [26][27][28]. Методы МРТ нижней челюсти продолжают улучшаться и оптимизироваться с целью облегчения работы рентгенологов и автоматизации анализа полученного изображения [29][30][31].…”

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Applied anatomy of mandibular canal

Grigoryants,

Khatypova,

Makalish

et al. 2023

Humans and their Health

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The mandibular canal (canalis mandibulae) runs in the thickness of the mandible from the mandibular foramen (foramen mandibulae) to the mental foramen (foramen mentale). The knowledge of its topography and relations with the dental root apices is of great practical importance for the prevention of iatrogenic injuries of the inferior alveolar neurovascular bundle during endodontic and orthodontic treatment and during a number of surgical procedures, such as extraction, resection of the apices of the roots of the teeth, cystectomy, removal of intraosseous neoplasms, as well as during conduction anesthesia. The purpose of this work is to summarize information about the variants of the structure and topography of the mandibular canal. The article considers variants of the structure, course, and topography of the mandibular canal, including in cases of adentia, revealed on the basis of various methods of research. In addition to the use of natural preparations (cuts of the lower jaws), modern radiation research methods, such as radiography, computed tomography and cone-beam computed tomography, are widely used to study the topography of the mandibular canal. The mandibular canal is characterized by significant variability in its course and complex relationships with surrounding structures. The most common variation in the structure of the canal is its bifurcation, which is associated with the peculiarities of embryonic development and is of great clinical importance. Up to date, there are several classifications of variants of its structure that can be used in clinical practice. Further accumulation and systematization of data on its anatomical and topographic features are important for the diagnosis and implementation of therapeutic manipulations in this area.

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Assessment of the cut-off value of quantitative liver–portal vein contrast ratio in the hepatobiliary phase of liver MRI

et al. 2021

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Mandibular canal visibility using a plain volumetric interpolated breath-hold examination sequence in MRI

Abstract: A plain VIBE can depict the NVB at the same rate as CE VIBE, and is suitable for detecting NVBs.

Cited by 7 publications

References 16 publications

Prediction of Sufficient Liver Enhancement on the Gadoxetate Disodium-enhanced Hepatobiliary Phase Imaging Using Transitional Phase Images and Albumin–bilirubin Grade

Prediction of Sufficient Liver Enhancement on the Gadoxetate Disodium-enhanced Hepatobiliary Phase Imaging Using Transitional Phase Images and Albumin–bilirubin Grade

Applied anatomy of mandibular canal

Assessment of the cut-off value of quantitative liver–portal vein contrast ratio in the hepatobiliary phase of liver MRI

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