Herman Oosterwijk

[email protected]

What do I need to know about HL7?

During the 2013 Society for Imaging Informatics in Medicine annual conference, there was an overriding message to healthcare imaging and IT professionals that they should learn more about HL7, especially as image-enabling the electronic medical record is becoming a very hot item.

October 21, 2013

2013 05 07 11 46 08 172 Cyber Informatics 200

Will CDA replace HL7 version 2 messaging?

CDA, or Clinical Document Architecture, is a new information exchange standard under HL7 that is mandated by the U.S. government's meaningful use program. In this article, radiology informatics expert Herman Oosterwijk of OTech explains CDA and how it differs from previous HL7 standards on messaging.

August 19, 2013

2013 05 07 11 46 08 172 Cyber Informatics 200

Saudi Arabia makes big strides in healthcare IT

The recent Saudi Health meeting highlights the major investments the country is making in healthcare IT. But Western IT vendors must do a better job of adapting their software to local needs, according to radiology informatics expert Herman Oosterwijk of OTech.

May 15, 2013

2013 05 10 15 19 48 808 Arabian Night 200

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Cardiac MRI analysis can provide useful information on epicardial adipose tissue, infarct size, microvascular obstruction, and myocardial edema.

MRI casts light on patient outcome after heart attack

Increased volume of fat tissue around the heart tends can be associated with greater myocardial damage after a heart attack, German researchers have reported.

A smartphone is used to take an image for a 3D-printed prosthesis.

3D-printed prostheses bring hope in conflict zones

Obesity Text2

MRI proves effective for tracking results of obesity interventions

Croatia Brushstroke Flag

Lung cancer screening: How Croatia does it

Example case from test set with biparametric MRI data, reference segmentation, and output from AI system. The primary MRI assessment resulted in a PI-RADS 5 lesion in the left dorsal part of the peripheral zone and a PI-RADS 4 lesion in the right dorsal part of the peripheral zone (PSA of 11.6 μg/L). Targeted biopsies from both areas showed ISUP-grade 3. All images are from the same slice location, showing a part of both lesions. A T2-weighted (T2W) image. B Diffusion-weighted image with a b-value of 1,500 s/mm2. (C) Apparent diffusion coefficient map. (D) Reference segmentation with white areas representing tumor. (E) Softmax output from AI system. Inset in the lower left corner shows the detection map (cropped around the prostate) with red voxels representing softmax values of 0.99 and yellow voxels representing softmax values of 0.59. (F) T2W image with reference (D) and detection map (inset in E) overlayed, green represents areas in which both the reference and the AI output are positive (true positive voxels for AI), red only positive in reference (false-negative voxels for AI) and blue only segmented by AI (false-positive voxels for AI).

AI comes under scrutiny in Swedish prostate MRI study

MRI casts light on patient outcome after heart attack

By Maryam Payne

Increased volume of fat tissue around the heart tends can be associated with greater myocardial damage after a heart attack, German researchers have reported.

December 12, 2025

Cardiac MRI analysis can provide useful information on epicardial adipose tissue, infarct size, microvascular obstruction, and myocardial edema.

3D-printed prostheses bring hope in conflict zones

3D-printing allows for faster, lighter, more affordable, and highly customized prosthetic production, and the technology can help patients regain mobility.

December 11, 2025

A smartphone is used to take an image for a 3D-printed prosthesis.

MRI proves effective for tracking results of obesity interventions

By Kate Madden Yee

MRI is a powerful tool to monitor skeletal muscle adaptations during lifestyle interventions for obesity, researchers noted.

December 10, 2025

Lung cancer screening: How Croatia does it

By Maryam Payne

The Croatian lung cancer screening program, integrated into the national system and designed for equitable access, could serve as a model for other countries.

December 10, 2025

Croatia Brushstroke Flag

AI comes under scrutiny in Swedish prostate MRI study

An AI system trained in a screening population has lower specificity than radiologists using PI-RADS v2, but considerable care is vital, researchers from Gothenburg reported in European Radiology on 8 December.

December 9, 2025

Example case from test set with biparametric MRI data, reference segmentation, and output from AI system. The primary MRI assessment resulted in a PI-RADS 5 lesion in the left dorsal part of the peripheral zone and a PI-RADS 4 lesion in the right dorsal part of the peripheral zone (PSA of 11.6 μg/L). Targeted biopsies from both areas showed ISUP-grade 3. All images are from the same slice location, showing a part of both lesions. A T2-weighted (T2W) image. B Diffusion-weighted image with a b-value of 1,500 s/mm2. (C) Apparent diffusion coefficient map. (D) Reference segmentation with white areas representing tumor. (E) Softmax output from AI system. Inset in the lower left corner shows the detection map (cropped around the prostate) with red voxels representing softmax values of 0.99 and yellow voxels representing softmax values of 0.59. (F) T2W image with reference (D) and detection map (inset in E) overlayed, green represents areas in which both the reference and the AI output are positive (true positive voxels for AI), red only positive in reference (false-negative voxels for AI) and blue only segmented by AI (false-positive voxels for AI).

Molecular imaging can trigger 'next revolution' in radiology

By Amerigo Allegretto

Molecular imaging will play a key role in precision medicine, and radiology will be at the forefront in ensuring the best patient outcomes, predicts RSNA President Dr. Umar Mahmood, PhD.

December 8, 2025

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Challenging inequity: ESR group spells out why it matters

By Maryam Payne

Radiology staff must recognize how inequities in imaging affect patients from minority groups, says the ESR subcommittee on equity, diversity, and inclusivity.

December 8, 2025

Color Profiles Res

PET/MRI detects ‘unknown’ generators of musculoskeletal pain

Potential pain generators were identified by increased F-18 FDG radiotracer uptake on PET and/or structural abnormalities on MRI.

December 5, 2025

Digital workflows, 3D models enhance preoperative planning

By Maryam Payne

Low-cost digital workflows using 3D printing and AI-assisted model-building can prove valuable for preoperative planning.

December 5, 2025

Postoperative 3D volume rendering of the fenestrated endograft reconstruction: 3D volume-rendered reconstruction obtained in Horos using the standard soft-tissue preset. The image displays the postoperative appearance of the fenestrated endograft and visceral stents, extending from the descending thoracic aorta to the iliac bifurcation, acquired during the follow-up CT angiogram one month after the procedure. The reconstruction shows patent visceral branches with well-perfused stents, absence of endoleak, and successful restoration of the previously disconnected left limb with adequate iliac perfusion.

Cryoablation treats early-stage breast cancer in older women

By Amerigo Allegretto

Cryoablation is effective in treating early-stage breast cancer in older women who do not undergo surgery, a team from Madrid reported at RSNA 2025.

December 4, 2025

Rsna 2025 Welcome

Stent procedure proves safe in pediatric liver transplant cases

Biodegradable stents appear safe and effective for treating narrowing of the bile ducts in children after liver transplants, Italian researchers noted at RSNA 2025.

December 4, 2025

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Radiology must persevere with sustainability efforts

By Kate Madden Yee

It's crucial to reduce medical imaging's energy use and waste to mitigate the effect of global warming, warns RSNA 2025 keynote speaker Dr. Geraldine McGinty.

December 3, 2025

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