Update on recent developments

After a short hiatus the site is now fully functional again. There were some minor changes (none user-facing), which are not related to the functionalities or informations provided. The disclaimers and terms of use have been also updated, and therefore please read them again. I am grateful for all the users who have reached out … Read more

Updates on recent developments and new features

Quite some time has passed since the last update so a new post was really due. The site layout went under further substantial redesign in the meantime, and several new functionalities have been added. A quick summary of the new features fielded since the last post: You have most certainly noticed that advertisements have appeared … Read more

RECIST 1.1, quantitative Crohn’s disease MRI and more

Several new functionalities have become available since my last update. Also one of the most popular calculators (adrenal washout) has been slightly redesigned for a hopefully more streamlined user experience. As you can notice the menu system has underwent a considerable reorganization recently. This was a must since with the growing number of tools the … Read more

New functionalities: carotid stenosis calculator for ultrasound, and incidental lung nodule recommendations calculator for CT

Carotid ultrasound is a technically exam dreaded by even many otherwise experienced examiners. A key reason is the rigorous attention to details and technical parameters that need to be followed in order to get reliable results. Small changes in angle of insonation, or poor positioning of the sampling gate can lead to unreliable measurements. These … Read more

Today’s updates – calculators for volume/diameter-based volume doubling time (VDT) for lung nodules

Even today most lung nodules detected on CT are managed and followed up based on diameters measured manually in the standard imaging planes. It has been long known however that this approach has many shortcomings and pitfalls. Volumetry and comparisons based on nodule growth are less prone to be influenced by nodule geometry or inaccuriacies … Read more

New: calculate the original and modified Van Assche indices

Today I have added two new functionalities, the original and modified Van Assche indices, with those in mind who routinely report baseline and follow-up MRI exams in patients with perianal Crohn disease. Both scoring systems have their merits, and there are still several questions regarding their use and predictive value. Further informations and links to … Read more

Welcome to Radiology calculators

I have created radiology calculators as an educational tool. Quantitative data and the use of reporting and risk stratification systems have a steadily increasing importance in the daily work of medical imaging professionals. Right now at launch we have several calculators that facilitate measurements and comparisons of various formulas approaching the same problem (e.g. pleural … Read more