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Mimvista work station

Manufactured by MIM Software
Sourced in United States

The MIMVista workstation is a software platform designed for medical imaging analysis and visualization. It provides tools for viewing and processing medical images, such as CT, MRI, and PET scans, to assist healthcare professionals in diagnosis and treatment planning.

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5 protocols using mimvista work station

1

Fluciclovine-based PET-CT Imaging Protocol

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Fluciclovine preparation was completed as earlier reported under IND (Investigational New Drug Application) 72,437.15 (link) Patients ingested oral contrast medium after at least 4 hours of fasting. An initial cT with a 3.75 mm slice thickness and 3.25 mm spacing was completed to correct attenuation (approximately 100 mA). Next a mean ± SD of 364.1 ± 37.7 MBq (9.84 ± 1.02 mCi) intravenous fluciclovine was administered. Five minutes after injection the patient underwent dual time point PET from pelvis to diaphragm at 2.5 minutes per bed position for 4 table positions. Scanning was completed on a Discovery MV690 PET-CT scanner (GE Healthcare, Wauwatosa, Wisconsin). Images were reconstructed with an iterative technique using a VUE Point Fx (GE Healthcare) with 3 iterations, 24 subsets and a filter cutoff of 6.4 mm. Images were transferred to a MIMVista work station (MIM Software, Cleveland, Ohio) for interpretation.
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2

Quantitative PET/CT and MRI Breast Tumor Analysis

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A specialist in nuclear medicine with 11 years of PET experience reviewed the FDG PET/CT images on a MIMvista workstation (ver. 6.5; MIM Software Inc, Cleveland, OH). All metabolic parameters were measured from the tumor volume segmented by a gradient-based method, as previously described.[22 (link),23 (link)] A gradient segmentation method is available in the MIMvista software with an operator-defined starting point near the center of the breast tumor lesion. Once the primary target lesion was segmented, SUVmax, mean standardized uptake value (SUVmean), MTV, and TLG were calculated automatically by the MIMvista software (Fig. 1). TLG was calculated by multiplying the SUVmean by the MTV. All SUVs were estimated based on injected dose and body weight.
All MR images were reviewed by a radiologist with 9 years of experience in interpreting breast imaging data. The lesion size was measured as the longest diameter of the lesion on the MIP image using a picture archiving and communication system workstation with electronic calipers. For multiple lesions, the longest diameter of each lesion was recorded separately and the sum of the lesions was calculated.
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3

Fluciclovine PET-CT Imaging Protocol

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Fluciclovine preparation was completed as earlier reported [15 (link), 16 (link)]. Patients fasted for at least 4 hours following which oral contrast was given and scanning completed on a GE Discovery MV690 PET-CT scanner (GE Healthcare, Wauwatosa, WI). An initial CT scan was completed for attenuation correction (approximately 100 mAs) and 370.0±13.0 MBq (10.0±0.35mci) of fluciclovine was then intravenously infused via pump over two minutes, followed by a 3 minute wait to allow for blood pool clearance. A 2.5 min/bed emission acquisition from pelvis to diaphragm (5–15 minute) was performed and then immediately repeated (15.5–25.5 min). Images were reconstructed with iterative technique (VUE Point Fx; 3 iterations, 24 subsets. filter cutoff 6.4 mm, GE Healthcare, Wauwatosa, WI) and transferred to a MIMVista work station (MIM Software; Cleveland, OH) for interpretation.
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4

Standardized Liver SUL Measurement

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All FDG PET/CT scans were independently interpreted on a MIMvista workstation (software version 5.2; MIM Software Inc. Cleveland, OH) by two readers, who are both board certified Nuclear Medicine physicians. PET, CT, and fused PET/CT images were reviewed in the axial, coronal, and sagittal planes. Liver SULmean values were measured in the following three separate areas within the right lobe of the liver: (a) the right lobe above the portal vein (segments VII and VIII), (b) below the level of the portal vein in the right lower lobe (segments V and VI), and (c) at the level of the right portal vein (straddling segments V through VIII) (Figure 1). Spherical 30 mm diameter VOI's were placed at these three locations based on the CT and cross-referenced with the PET to assure that the VOI's were within the metabolic boundaries of the right liver. The right lobe of the liver was used because it is easier to draw the ROI at different levels, giving its larger size and it is the most common site used in clinical practice [16 (link), 20 (link), 24 (link), 25 (link)].
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5

Imaging Guided Prostate Cancer Recurrence

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Image interpretation was done on a MIMVista Workstation (MIM Software Inc, OH, USA). Image interpretation was done independently by two experienced board-certified nuclear medicine physicians each with more than 20-year experience. Discrepancies were resolved by consensus read. The interpreters were blinded to the patients’ clinical history including PSA level and findings on the prior conventional imaging modalities. Areas of increased 18F-fluciclovine uptake above background activity not corresponding to typical physiological uptake or its variants were considered pathological and in favor of PCa recurrence. The maximum standardized uptake value (SUVmax) of the recurrent lesion and the diameter (long and short axis dimensions) of lymph nodal recurrent lesions were determined and recorded. The recurrent lesions were classified as prostate (prostate bed, seminal vesicles, lateral resection margins, or vesicourethral anastomosis), pelvic (pelvic lymph nodes) or extrapelvic (outside of the standard field of pelvic SRT including skeletal, visceral, and extra-pelvic lymph nodes) recurrence.
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