Tag Archives: bone

The microCT world community map

Find out who’s doing what in microCT, or let the world know what you do!

There is now a dedicated microCT world community map page on the blog! Check it out to navigate through the microCT community. You’ll find scanner manufacturers, service providers, research labs, and more. Please, consider this as a living document that will take some time to be populated. If you are a professional who wants to be listed on the map, drop a comment on the dedicated page. Only companies / institutes / individuals who explicitly ask to be listed on the map will be included.

I hope you’ll find the map a useful tool and would be happy to receive any suggestion you may have.

Enrico

Trabecular Thickness (Tb.Th), Trabecular Spacing (Tb.Sp), Trabecular Number (Tb.N)

This post is part of a tutorial series on morphometric indices. You may also be interested in Bone Volume Density (BV/TV) – Light Version, Choose The Right Volume Of Interest – Light Version and The surface of an object. Bone surface (BS) and specific bone surface (BS/BV) posts.

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MicroCT and QA

Over the past years, the topic of quality assurance (QA) has been a steady companion and although I might not necessarily like QA on f, there’s no doubt that thinking of negatively influencing variables of a working process is strengthening the awareness of potential issues and therefore still earns a +1 on g. Developing and implementing standard operating procedures (SOP)  is then the next step after the detailed risk assessment of a process and aims to standardize the findings of the expert, who is aware of all influencing variables and context-specific dependencies. And by fixing this approach into a written SOP, it can be ensured that the results obtained by following this procedure are consistent and don’t require the expert’s knowledge. Despite this rather short and simplified description of QA, it is probably common-sense that the benefit of eliminating (or at least consistently managing) critical issues of the process generally increases the quality of the results.

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The history of microCT

The origins

The theoretical basis of Computed Tomography (CT) finds its origins in 1917, when the Austrian mathematician Johan Radon (16 December 1887 – 25 May 1956)  proved that an n-dimensional object can be reconstructed from its (n-1)-dimensional projections [1]. However, only in the second half of the century the mathematical basis for the actual CT image reconstruction was presented in two papers by Allan M. Cormack (Feb. 23, 1924 – May 7, 1998) [2, 3] in 1964 and 1965, respectively.

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The surface of an object. Bone surface (BS) and specific bone surface (BS/BV)

This post is part of a tutorial series on morphometric indices. You may also be interested in Bone Volume Density (BV/TV) – Light Version and Choose The Right Volume Of Interest – Light Version posts.

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The costs of a microCT scan

MicroCT is a very powerful technology, though it does not come for free.

When running a project, either in academic or industry settings, we are always faced with budget restrictions. The challenge is getting the most out of the money we invest.

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Bone volume density (BV/TV) – Light version

The usual suspects

Episode 1

BV/TV, Tb.Th., Tb.Sp. and the other usual suspects: what do they really mean?

If you are asking yourself this question, you should definitely read this! Coming soon in the same series: Trabecular Thickness (Tb.Th) and Trabecular Spacing (Tb.Sp), Bone surface density (BS/TV), Structure Model Index (SMI), Connectivity Density (Conn. D), and others. The “Light version” series is intended to those who are just approaching the field, or to those who are looking for a simple way to explain these concepts to others. If you are a professional, please insert your comments to help us making this post more complete and interesting.

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Who are the microCT scanner manufacturers?

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Maybe it is not as common and cheap as buying a microwave oven, but probably there are some of you who have thought about purchasing a microCT scanner, right?

Your questions: “Who are the scanner manufacturers?”, “Should I buy a scanner?”,  “What scanner ?”. This post will point you towards the information you need to make up your mind.

At the end the decision whether the investment is worthwhile depends on many things. What do you want to use microCT for? How often? Do you know how to operate a scanner? Do you have the right resources? And many more….

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Choose the right Volume Of Interest – Light version


Brothers Mario and Luigi are at the restaurant and both order a glass of water. The waiter serves Mario a full glass, whereas poor Luigi only gets it half full. “hey, waiter!” Luigi starts complaining…until the garçon makes him innocently notice that his glass is double as big as Mario’s one, and that he poured the exact same quantity of water into the two glasses. Happy and reassured, Mario and Luigi continue talking about their fantastic adventures…

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Results interpretation: HELP!!

Are you looking for help on the interpretation of your microCT results?

If you are new to microCT and you are in trouble, you can either be creative like they did, or ask for

We and the other users may not have the answer to everything, but we’ll do our best to help you!

Just post your question in the comment section.