PMC:2948165 / 5591-8165 JSONTXT

{"project":"TEST0","denotations":[{"id":"20585784-218-223-46837","span":{"begin":256,"end":257},"obj":"[\"9530296\"]"},{"id":"20585784-221-226-46838","span":{"begin":259,"end":260},"obj":"[\"10030653\"]"},{"id":"20585784-10-15-46839","span":{"begin":262,"end":263},"obj":"[\"9862835\"]"},{"id":"20585784-13-19-46840","span":{"begin":265,"end":267},"obj":"[\"10520835\"]"},{"id":"20585784-17-23-46841","span":{"begin":269,"end":271},"obj":"[\"12147861\", \"15779040\", \"12704042\"]"},{"id":"20585784-103-109-46842","span":{"begin":380,"end":382},"obj":"[\"16463302\"]"},{"id":"20585784-89-94-46843","span":{"begin":720,"end":721},"obj":"[\"9530296\"]"},{"id":"20585784-92-97-46844","span":{"begin":723,"end":724},"obj":"[\"10030653\"]"},{"id":"20585784-95-100-46845","span":{"begin":726,"end":727},"obj":"[\"9862835\"]"},{"id":"20585784-98-104-46846","span":{"begin":729,"end":731},"obj":"[\"10520835\"]"},{"id":"20585784-102-108-46847","span":{"begin":733,"end":735},"obj":"[\"12147861\", \"15779040\", \"12704042\"]"},{"id":"20585784-233-239-46848","span":{"begin":1349,"end":1351},"obj":"[\"12147861\"]"},{"id":"20585784-185-190-46849","span":{"begin":1539,"end":1540},"obj":"[\"9530296\"]"},{"id":"20585784-188-193-46850","span":{"begin":1542,"end":1543},"obj":"[\"10030653\"]"},{"id":"20585784-191-196-46851","span":{"begin":1545,"end":1546},"obj":"[\"10087531\"]"},{"id":"20585784-194-200-46852","span":{"begin":1548,"end":1550},"obj":"[\"12147861\"]"},{"id":"20585784-198-204-46853","span":{"begin":1552,"end":1554},"obj":"[\"8760126\"]"},{"id":"20585784-202-208-46854","span":{"begin":1556,"end":1558},"obj":"[\"10652917\"]"},{"id":"20585784-234-239-46855","span":{"begin":2060,"end":2061},"obj":"[\"9530296\"]"},{"id":"20585784-237-242-46856","span":{"begin":2063,"end":2064},"obj":"[\"10030653\"]"},{"id":"20585784-10-16-46857","span":{"begin":2066,"end":2068},"obj":"[\"12147861\"]"}],"text":"Patient positioning and MRI technique\nIn most studies, each experiment starts after a period of fasting. Then, the subjects are positioned in a conventional MRI scanner (mostly 1.5-T field strength) in a right-sided semi-supine position (30–45°) (Fig. 1) [4, 5, 8, 10, 15–17]. Most studies use this semi-supine position, since MRI in the sitting position is not widely available [18].\nFig. 1 Illustration of patient positioning for gastric MRI study. Patient is positioned in a right-sided semi-supine position to enhance gastric emptying. The surface coil is positioned anterior to the patient for improved image quality at 1.5 T\nFor the evaluation of gastric emptying, a three-dimensional (3D) volume scan is applied [4, 5, 8, 10, 15–17]. In this sequence, the entire stomach is included in the volume acquisition; from the volume data multiple slices with a slice thickness of 0.5 to 1 cm are reconstructed for further evaluation. To evaluate momentary gastric volume, the use of a multi-receive parallel body synergy coil has been advocated at 1.5 T. Sequence parameters include, for example, a turbo field echo (TFE) sequence, TE = 3.5 ms, TR = 10 ms, field of view 450 mm, rectangular field of view 55%, symmetric reduction 50%, flip angle 25°, 256 × 256 pixels, slice thickness 10 mm, with a total scan duration of 25 s, without breath-hold [15].\nTo assess gastric motility, a fast two-dimensional (2D) dynamic scan (such as turbo field echo, turbo spin echo, echo planar imaging, true FISP, balanced FFE, RARE) has been advocated [4, 5, 7, 15, 19, 20]. There is no particular preference for a specific acquisition technique, as the only goal of the technique is to be sufficiently fast to reach a temporal resolution that is high enough to analyze gastric motility with MRI. Some authors have advocated a single slice approach at the level of the stomach to assess dynamic gastric volume changes in a semi-coronal image orientation in which both parts of the antrum and part of the fundus along the longitudinal stomach axis are included (see Fig. 2) [4, 5, 15]. The following parameters have been proposed for a turbo field echo acquisition, including 300 images per scan over a time period of, for example, 5 min, a temporal resolution of 1 image per second, TE = 3.6 ms, TR = 10 ms, field of view 450 mm, rectangular field of view 55%, symmetric reduction 50%, flip angle 25°, 256/128 pixels, slice thickness 10 mm, without breath-hold.\nFig. 2 An example of a peristaltic contraction beginning at the level of the gastric fundus and propagating towards the antrum"}

{"project":"0_colil","denotations":[{"id":"20585784-9530296-46837","span":{"begin":256,"end":257},"obj":"9530296"},{"id":"20585784-10030653-46838","span":{"begin":259,"end":260},"obj":"10030653"},{"id":"20585784-9862835-46839","span":{"begin":262,"end":263},"obj":"9862835"},{"id":"20585784-10520835-46840","span":{"begin":265,"end":267},"obj":"10520835"},{"id":"20585784-16463302-46842","span":{"begin":380,"end":382},"obj":"16463302"},{"id":"20585784-9530296-46843","span":{"begin":720,"end":721},"obj":"9530296"},{"id":"20585784-10030653-46844","span":{"begin":723,"end":724},"obj":"10030653"},{"id":"20585784-9862835-46845","span":{"begin":726,"end":727},"obj":"9862835"},{"id":"20585784-10520835-46846","span":{"begin":729,"end":731},"obj":"10520835"},{"id":"20585784-12147861-46848","span":{"begin":1349,"end":1351},"obj":"12147861"},{"id":"20585784-9530296-46849","span":{"begin":1539,"end":1540},"obj":"9530296"},{"id":"20585784-10030653-46850","span":{"begin":1542,"end":1543},"obj":"10030653"},{"id":"20585784-10087531-46851","span":{"begin":1545,"end":1546},"obj":"10087531"},{"id":"20585784-12147861-46852","span":{"begin":1548,"end":1550},"obj":"12147861"},{"id":"20585784-8760126-46853","span":{"begin":1552,"end":1554},"obj":"8760126"},{"id":"20585784-10652917-46854","span":{"begin":1556,"end":1558},"obj":"10652917"},{"id":"20585784-9530296-46855","span":{"begin":2060,"end":2061},"obj":"9530296"},{"id":"20585784-10030653-46856","span":{"begin":2063,"end":2064},"obj":"10030653"},{"id":"20585784-12147861-46857","span":{"begin":2066,"end":2068},"obj":"12147861"},{"id":"20585784-12147861-46841","span":{"begin":269,"end":271},"obj":"12147861"},{"id":"20585784-12704042-46841","span":{"begin":269,"end":271},"obj":"12704042"},{"id":"20585784-15779040-46841","span":{"begin":269,"end":271},"obj":"15779040"},{"id":"20585784-12147861-46847","span":{"begin":733,"end":735},"obj":"12147861"},{"id":"20585784-12704042-46847","span":{"begin":733,"end":735},"obj":"12704042"},{"id":"20585784-15779040-46847","span":{"begin":733,"end":735},"obj":"15779040"}],"text":"Patient positioning and MRI technique\nIn most studies, each experiment starts after a period of fasting. Then, the subjects are positioned in a conventional MRI scanner (mostly 1.5-T field strength) in a right-sided semi-supine position (30–45°) (Fig. 1) [4, 5, 8, 10, 15–17]. Most studies use this semi-supine position, since MRI in the sitting position is not widely available [18].\nFig. 1 Illustration of patient positioning for gastric MRI study. Patient is positioned in a right-sided semi-supine position to enhance gastric emptying. The surface coil is positioned anterior to the patient for improved image quality at 1.5 T\nFor the evaluation of gastric emptying, a three-dimensional (3D) volume scan is applied [4, 5, 8, 10, 15–17]. In this sequence, the entire stomach is included in the volume acquisition; from the volume data multiple slices with a slice thickness of 0.5 to 1 cm are reconstructed for further evaluation. To evaluate momentary gastric volume, the use of a multi-receive parallel body synergy coil has been advocated at 1.5 T. Sequence parameters include, for example, a turbo field echo (TFE) sequence, TE = 3.5 ms, TR = 10 ms, field of view 450 mm, rectangular field of view 55%, symmetric reduction 50%, flip angle 25°, 256 × 256 pixels, slice thickness 10 mm, with a total scan duration of 25 s, without breath-hold [15].\nTo assess gastric motility, a fast two-dimensional (2D) dynamic scan (such as turbo field echo, turbo spin echo, echo planar imaging, true FISP, balanced FFE, RARE) has been advocated [4, 5, 7, 15, 19, 20]. There is no particular preference for a specific acquisition technique, as the only goal of the technique is to be sufficiently fast to reach a temporal resolution that is high enough to analyze gastric motility with MRI. Some authors have advocated a single slice approach at the level of the stomach to assess dynamic gastric volume changes in a semi-coronal image orientation in which both parts of the antrum and part of the fundus along the longitudinal stomach axis are included (see Fig. 2) [4, 5, 15]. The following parameters have been proposed for a turbo field echo acquisition, including 300 images per scan over a time period of, for example, 5 min, a temporal resolution of 1 image per second, TE = 3.6 ms, TR = 10 ms, field of view 450 mm, rectangular field of view 55%, symmetric reduction 50%, flip angle 25°, 256/128 pixels, slice thickness 10 mm, without breath-hold.\nFig. 2 An example of a peristaltic contraction beginning at the level of the gastric fundus and propagating towards the antrum"}

{"project":"2_test","denotations":[{"id":"20585784-9530296-29355973","span":{"begin":256,"end":257},"obj":"9530296"},{"id":"20585784-10030653-29355974","span":{"begin":259,"end":260},"obj":"10030653"},{"id":"20585784-9862835-29355975","span":{"begin":262,"end":263},"obj":"9862835"},{"id":"20585784-10520835-29355976","span":{"begin":265,"end":267},"obj":"10520835"},{"id":"20585784-12147861-29355977","span":{"begin":269,"end":271},"obj":"12147861"},{"id":"20585784-15779040-29355977","span":{"begin":269,"end":271},"obj":"15779040"},{"id":"20585784-12704042-29355977","span":{"begin":269,"end":271},"obj":"12704042"},{"id":"20585784-16463302-29355978","span":{"begin":380,"end":382},"obj":"16463302"},{"id":"20585784-9530296-29355979","span":{"begin":720,"end":721},"obj":"9530296"},{"id":"20585784-10030653-29355980","span":{"begin":723,"end":724},"obj":"10030653"},{"id":"20585784-9862835-29355981","span":{"begin":726,"end":727},"obj":"9862835"},{"id":"20585784-10520835-29355982","span":{"begin":729,"end":731},"obj":"10520835"},{"id":"20585784-12147861-29355983","span":{"begin":733,"end":735},"obj":"12147861"},{"id":"20585784-15779040-29355983","span":{"begin":733,"end":735},"obj":"15779040"},{"id":"20585784-12704042-29355983","span":{"begin":733,"end":735},"obj":"12704042"},{"id":"20585784-12147861-29355984","span":{"begin":1349,"end":1351},"obj":"12147861"},{"id":"20585784-9530296-29355985","span":{"begin":1539,"end":1540},"obj":"9530296"},{"id":"20585784-10030653-29355986","span":{"begin":1542,"end":1543},"obj":"10030653"},{"id":"20585784-10087531-29355987","span":{"begin":1545,"end":1546},"obj":"10087531"},{"id":"20585784-12147861-29355988","span":{"begin":1548,"end":1550},"obj":"12147861"},{"id":"20585784-8760126-29355989","span":{"begin":1552,"end":1554},"obj":"8760126"},{"id":"20585784-10652917-29355990","span":{"begin":1556,"end":1558},"obj":"10652917"},{"id":"20585784-9530296-29355991","span":{"begin":2060,"end":2061},"obj":"9530296"},{"id":"20585784-10030653-29355992","span":{"begin":2063,"end":2064},"obj":"10030653"},{"id":"20585784-12147861-29355993","span":{"begin":2066,"end":2068},"obj":"12147861"}],"text":"Patient positioning and MRI technique\nIn most studies, each experiment starts after a period of fasting. Then, the subjects are positioned in a conventional MRI scanner (mostly 1.5-T field strength) in a right-sided semi-supine position (30–45°) (Fig. 1) [4, 5, 8, 10, 15–17]. Most studies use this semi-supine position, since MRI in the sitting position is not widely available [18].\nFig. 1 Illustration of patient positioning for gastric MRI study. Patient is positioned in a right-sided semi-supine position to enhance gastric emptying. The surface coil is positioned anterior to the patient for improved image quality at 1.5 T\nFor the evaluation of gastric emptying, a three-dimensional (3D) volume scan is applied [4, 5, 8, 10, 15–17]. In this sequence, the entire stomach is included in the volume acquisition; from the volume data multiple slices with a slice thickness of 0.5 to 1 cm are reconstructed for further evaluation. To evaluate momentary gastric volume, the use of a multi-receive parallel body synergy coil has been advocated at 1.5 T. Sequence parameters include, for example, a turbo field echo (TFE) sequence, TE = 3.5 ms, TR = 10 ms, field of view 450 mm, rectangular field of view 55%, symmetric reduction 50%, flip angle 25°, 256 × 256 pixels, slice thickness 10 mm, with a total scan duration of 25 s, without breath-hold [15].\nTo assess gastric motility, a fast two-dimensional (2D) dynamic scan (such as turbo field echo, turbo spin echo, echo planar imaging, true FISP, balanced FFE, RARE) has been advocated [4, 5, 7, 15, 19, 20]. There is no particular preference for a specific acquisition technique, as the only goal of the technique is to be sufficiently fast to reach a temporal resolution that is high enough to analyze gastric motility with MRI. Some authors have advocated a single slice approach at the level of the stomach to assess dynamic gastric volume changes in a semi-coronal image orientation in which both parts of the antrum and part of the fundus along the longitudinal stomach axis are included (see Fig. 2) [4, 5, 15]. The following parameters have been proposed for a turbo field echo acquisition, including 300 images per scan over a time period of, for example, 5 min, a temporal resolution of 1 image per second, TE = 3.6 ms, TR = 10 ms, field of view 450 mm, rectangular field of view 55%, symmetric reduction 50%, flip angle 25°, 256/128 pixels, slice thickness 10 mm, without breath-hold.\nFig. 2 An example of a peristaltic contraction beginning at the level of the gastric fundus and propagating towards the antrum"}

{"project":"MyTest","denotations":[{"id":"20585784-9530296-29355973","span":{"begin":256,"end":257},"obj":"9530296"},{"id":"20585784-10030653-29355974","span":{"begin":259,"end":260},"obj":"10030653"},{"id":"20585784-9862835-29355975","span":{"begin":262,"end":263},"obj":"9862835"},{"id":"20585784-10520835-29355976","span":{"begin":265,"end":267},"obj":"10520835"},{"id":"20585784-12147861-29355977","span":{"begin":269,"end":271},"obj":"12147861"},{"id":"20585784-15779040-29355977","span":{"begin":269,"end":271},"obj":"15779040"},{"id":"20585784-12704042-29355977","span":{"begin":269,"end":271},"obj":"12704042"},{"id":"20585784-16463302-29355978","span":{"begin":380,"end":382},"obj":"16463302"},{"id":"20585784-9530296-29355979","span":{"begin":720,"end":721},"obj":"9530296"},{"id":"20585784-10030653-29355980","span":{"begin":723,"end":724},"obj":"10030653"},{"id":"20585784-9862835-29355981","span":{"begin":726,"end":727},"obj":"9862835"},{"id":"20585784-10520835-29355982","span":{"begin":729,"end":731},"obj":"10520835"},{"id":"20585784-12147861-29355983","span":{"begin":733,"end":735},"obj":"12147861"},{"id":"20585784-15779040-29355983","span":{"begin":733,"end":735},"obj":"15779040"},{"id":"20585784-12704042-29355983","span":{"begin":733,"end":735},"obj":"12704042"},{"id":"20585784-12147861-29355984","span":{"begin":1349,"end":1351},"obj":"12147861"},{"id":"20585784-9530296-29355985","span":{"begin":1539,"end":1540},"obj":"9530296"},{"id":"20585784-10030653-29355986","span":{"begin":1542,"end":1543},"obj":"10030653"},{"id":"20585784-10087531-29355987","span":{"begin":1545,"end":1546},"obj":"10087531"},{"id":"20585784-12147861-29355988","span":{"begin":1548,"end":1550},"obj":"12147861"},{"id":"20585784-8760126-29355989","span":{"begin":1552,"end":1554},"obj":"8760126"},{"id":"20585784-10652917-29355990","span":{"begin":1556,"end":1558},"obj":"10652917"},{"id":"20585784-9530296-29355991","span":{"begin":2060,"end":2061},"obj":"9530296"},{"id":"20585784-10030653-29355992","span":{"begin":2063,"end":2064},"obj":"10030653"},{"id":"20585784-12147861-29355993","span":{"begin":2066,"end":2068},"obj":"12147861"}],"namespaces":[{"prefix":"_base","uri":"https://www.uniprot.org/uniprot/testbase"},{"prefix":"UniProtKB","uri":"https://www.uniprot.org/uniprot/"},{"prefix":"uniprot","uri":"https://www.uniprot.org/uniprotkb/"}],"text":"Patient positioning and MRI technique\nIn most studies, each experiment starts after a period of fasting. Then, the subjects are positioned in a conventional MRI scanner (mostly 1.5-T field strength) in a right-sided semi-supine position (30–45°) (Fig. 1) [4, 5, 8, 10, 15–17]. Most studies use this semi-supine position, since MRI in the sitting position is not widely available [18].\nFig. 1 Illustration of patient positioning for gastric MRI study. Patient is positioned in a right-sided semi-supine position to enhance gastric emptying. The surface coil is positioned anterior to the patient for improved image quality at 1.5 T\nFor the evaluation of gastric emptying, a three-dimensional (3D) volume scan is applied [4, 5, 8, 10, 15–17]. In this sequence, the entire stomach is included in the volume acquisition; from the volume data multiple slices with a slice thickness of 0.5 to 1 cm are reconstructed for further evaluation. To evaluate momentary gastric volume, the use of a multi-receive parallel body synergy coil has been advocated at 1.5 T. Sequence parameters include, for example, a turbo field echo (TFE) sequence, TE = 3.5 ms, TR = 10 ms, field of view 450 mm, rectangular field of view 55%, symmetric reduction 50%, flip angle 25°, 256 × 256 pixels, slice thickness 10 mm, with a total scan duration of 25 s, without breath-hold [15].\nTo assess gastric motility, a fast two-dimensional (2D) dynamic scan (such as turbo field echo, turbo spin echo, echo planar imaging, true FISP, balanced FFE, RARE) has been advocated [4, 5, 7, 15, 19, 20]. There is no particular preference for a specific acquisition technique, as the only goal of the technique is to be sufficiently fast to reach a temporal resolution that is high enough to analyze gastric motility with MRI. Some authors have advocated a single slice approach at the level of the stomach to assess dynamic gastric volume changes in a semi-coronal image orientation in which both parts of the antrum and part of the fundus along the longitudinal stomach axis are included (see Fig. 2) [4, 5, 15]. The following parameters have been proposed for a turbo field echo acquisition, including 300 images per scan over a time period of, for example, 5 min, a temporal resolution of 1 image per second, TE = 3.6 ms, TR = 10 ms, field of view 450 mm, rectangular field of view 55%, symmetric reduction 50%, flip angle 25°, 256/128 pixels, slice thickness 10 mm, without breath-hold.\nFig. 2 An example of a peristaltic contraction beginning at the level of the gastric fundus and propagating towards the antrum"}