Brad Levin

PACS/VNA
Revisiting deconstructed PACS: Part 2
In 2014, AuntMinnie.com published an article by PACS executive Brad Levin that described a new concept he called "deconstructed PACS," in which PACS components are purchased on a modular basis rather than as part of an all-in-one solution from a single vendor. Four years later, Mr. Levin looks at how far the concept has come in this two-part series.
February 27, 2018
2018 02 26 22 30 6574 Levin Brad 400 Thumb
PACS/VNA
Revisiting deconstructed PACS: Part 1
In 2014, AuntMinnie.com published an article by PACS executive Brad Levin that described a new concept he called "deconstructed PACS," in which PACS components are purchased on a modular basis rather than as part of an all-in-one solution from a single vendor. Four years later, Mr. Levin looks at how far the concept has come in this two-part series.
February 26, 2018
2018 02 26 22 30 6574 Levin Brad 400 Thumb
PACS/VNA
The time is now for deconstructed PACS
Is it time to rethink our perception of PACS? In this article, imaging informatics executive Brad Levin discusses how traditional PACS seems to have outlived its usefulness, and it should be replaced by a notion of deconstructed PACS in which technologies once seen as components now offer key functionality to radiologists.
March 30, 2014
2014 03 31 09 18 14 320 Levin Brad 200
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Images of a 69-year-old man diagnosed with prostate cancer who had a history of endocrine therapy for two years. (a) The maximum intensity projection (MIP) image of F-18 FDG showed moderate radiotracer uptake in a thoracic vertebra. (e) The MIP image of Ga-68 DOTA-IBA demonstrated more lesions in the cervical vertebra and pelvis. (b) An osteoblastic lesion in the C3 vertebra right attachment (curved arrows) was negative on F-18 FDG (SUVmax = 2.0) and positive on Ga-68 DOTA-IBA (SUVmax = 8.7). (c) Another osteoblastic lesion in the T10 vertebra left side (arrowheads) was both positive on F-18 FDG (SUVmax = 5.2) and positive on Ga-68 DOTA-IBA (SUVmax = 35.0). (d) Osteoblastic lesions in bilateral ilium (dotted arrows and arrows) were negative on F-18 FDG (left: SUVmax = 1.4, right: SUVmax = 1.6) and positive on Ga-68 DOTA-IBA (left: SUVmax = 7.6, right: SUVmax = 8.7). Follow-up imaging three months later confirmed the presence of these bone metastases. Image and caption available for republishing under Creative Commons license (CC BY 4.0 DEED, Attribution 4.0 International) and courtesy of Scientific Reports.
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Ultrasound images depict a 56-year-old man with obesity (body mass index, 42) and steatosis (MRI-PDFF, 10.4%), who underwent ultrasound attenuation coefficient (AC) measurement due to participation in the present study. The unit displays color-coded confidence map (left) and AC map (on right) in side-by-side manner. The confidence map indicates quality of acquired AC signals and is set like traffic lights: green indicates good quality acquisition, yellow indicates warning, and red indicates low quality. Areas with low quality are left blank on the AC map. The image shows multiple circular ROIs placed at depths below the liver capsule of 2, 2.5, 3, and 4 cm. All ROIs are 3.5 cm in size. The confidence map threshold is set at 20%. AC measurements (in units of dB/cm/MHz) were extracted from all ROIs (excluding voxels without assigned color on the AC map) and decrease with greater ROI depth.
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