In Vivo MRS of Lipids in Adipose Tissue, Bone Marrow, and Liver

Machann, Jürgen; Schick, Fritz

doi:10.1002/9780470034590.emrstm1436

Cited by 2 publications

(1 citation statement)

References 47 publications

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“…The RBM weight was subsequently calculated as one‐third of the BM volume multiplied by the density of red bone marrow 25 . Since bone marrow is one of the most radiosensitive organs, the RBM mass was also calculated based on data provided by Iwata et al 26 and using the RBM distribution according to a recent publication by Machann et al 27 According to both assessment methods the bone marrow in the elbow region represents 1.0% of the total bone marrow quantity in the human body.…”

Section: Methodsmentioning

confidence: 99%

Comparative dosimetry of radiography device, MSCT device and two CBCT devices in the elbow region

Koivisto

Eijnatten

Ludlow

et al. 2021

J Applied Clin Med Phys

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The aim of the study was to estimate and to compare effective doses in the elbow region resulting from four different x-ray imaging modalities. Absorbed organ doses were measured using 11 metal oxide field effect transistor (MOSFET) dosimeters that were placed in a custom-made anthropomorphic elbow RANDO phantom.Examinations were performed using Shimadzu FH-21 HR radiography device, Siemens Sensation Open 24-slice MSCT-device, NewTom 5G CBCT device, and Planmed Verity CBCT device, and the effective doses were calculated according to ICRP 103 recommendations. The effective dose for the conventional radiographic device was 1.5 µSv. The effective dose for the NewTom 5G CBCT ranged between 2.0 and 6.7 µSv, for the Planmed Verity CBCT device 2.6 µSv and for the Siemens Sensation MSCT device 37.4 µSv. Compared with conventional 2D radiography, this study demonstrated a 1.4-4.6 fold increase in effective dose for CBCT and 25-fold dose for standard MSCT protocols. When compared with 3D CBCT protocols, the study showed a 6-19 fold increase in effective dose using a standard MSCT protocol. CBCT devices offer a feasible low-dose alternative for elbow 3D imaging when compared to MSCT.

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Section: Methodsmentioning

confidence: 99%

Comparative dosimetry of radiography device, MSCT device and two CBCT devices in the elbow region

Koivisto

Eijnatten

Ludlow

et al. 2021

J Applied Clin Med Phys

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Effective Radiation Dose in the Wrist Resulting from a Radiographic Device, Two CBCT Devices and One MSCT Device: A Comparative Study

Koivisto

Eijnatten

Kiljunen

et al. 2017

Radiation Protection Dosimetry

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The objective of the present study was to assess and compare the effective doses in the wrist region resulting from conventional radiography device, multislice computed tomography (MSCT) device and two cone beam computed tomography (CBCT) devices using MOSFET dosemeters and a custom made anthropomorphic RANDO phantom according to the ICRP 103 recommendation. The effective dose for the conventional radiography was 1.0 μSv. The effective doses for the NewTom 5 G CBCT ranged between 0.7 μSv and 1.6 μSv, for the Planmed Verity CBCT 2.4 μSv and for the MSCT 8.6 μSv. When compared with the effective dose for AP- and LAT projections of a conventional radiographic device, this study showed an 8.6-fold effective dose for standard MSCT protocol and between 0.7 and 2.4-fold effective dose for standard CBCT protocols. When compared to the MSCT device, the CBCT devices offer a 3D view of the wrist at significantly lower effective doses.

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In Vivo MRS of Lipids in Adipose Tissue, Bone Marrow, and Liver

Cited by 2 publications

References 47 publications

Comparative dosimetry of radiography device, MSCT device and two CBCT devices in the elbow region

Comparative dosimetry of radiography device, MSCT device and two CBCT devices in the elbow region

Effective Radiation Dose in the Wrist Resulting from a Radiographic Device, Two CBCT Devices and One MSCT Device: A Comparative Study

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