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Questions tagged [imaging]

The process of gathering visual studies of tissue or the body for purposes of research or diagnostics.

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How to find papers about voltage imaging (with GEVI) for human brain research?

I would like to follow the Nature article https://www.nature.com/articles/d41586-018-06694-6 about voltage imaging of brains, about use of GEVI - Genetically Encoded Voltage Indicators. But I am ...
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What is the response vector in the fMRI GLM model?

In fMRI, univariate analysis typically makes use of the general linear model (GLM), where the relation between experimental condition and BOLD activity is estimated with a linear regression model for ...
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Recording policies in functional magnetic resonance imaging

Assume that the areas in a single-subject's brain that are involved in solving a task are supposed to be visualized with fMRI. The dynamics of the task solving process shall not matter (which areas ...
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53 views

How are fMRI responses to auditory stimuli measured?

How can fMRI experiments be conducted which measure the response to auditory stimuli (e.g. music) when the apparatus makes such loud, nasty, and distracting noises? Are there quieter MRI tomographs in ...
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What am I looking at in Franklin's Photo 51 of DNA?

Here's Rosalind Franklin's famous Photo 51, the X-ray diffraction image of DNA from which Watson and Crick deduced its structure: My understanding is that it depicts a short segment of DNA shown from ...
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Why does Stereology use Systematic Random Sampling?

I am a student of Neuroscience and in all my textbooks and lecture notes it is written that in Stereology, Systematic random sampling (SRS) is used to obtain sections. Why it's that and not any other ...
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How to drop a grid of points in DICOM images of a CT scan (imageJ? Horos?)

I have a series of DICOM images from a CT scan of a bucket of rocks. I want to systematically measure the size of the interstitial spaces. The reason I'm doing this is to compare it to a simulation I'...
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Atomic Force Microscopy Imaging of Proteins

I was reading about various imaging techniques, and I came across Atomic Force Microscopy (AFM). It sounds very interesting, and it also sounds like it is capable of imaging proteins (Page 4) http://...
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Determination of Ageing by ECG inclusions/exclusions?

I am studying ageing and considering ECG signal because of its high sensitivity in theory (escardio). Some factors Sensitivity Gender Medical treatment ... Benchmark: RTG dental + wrist uncertainty ...
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Acoustic characteristics of thoracic diaphragm

I am looking for any kind of information about the acoustic characteristics of the thoracic diaphragm. In particular, I'm looking for characteristics which will allow to differentiate it from other ...
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What is the general mechanism behind perfusion PET imaging

I understand how tracer kinetics can be used to determine binding potential but how it can be used to detect perfusion eludes me.
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How to create a 3D density map of a system of varying number of particles?

I have a time-dependent system of varying number of particles (~100k particles). In fact, each particle represents an interaction in a 3D space with a particular strength. Thus, each particle has (X,Y,...
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How to set threshold in ImageJ for quantifying relative fluorescence?

I have taken images from two different samples that have uptaken EdU during DNA synthesis (S-phase). The experiment setup is to find which condition had uptaken more EdU. Therefore I am detecting EdU ...
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Can we determine a person's age by dating methods or other means?

There are many sports restricted to players of a certain age (e.g. 16 and under, 18 and under, etc.) What if a person is older and fakes his birth certificate to say that he is younger? Is there any ...
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Workflow for batch analysis of ROI in histology samples

This is a pretty big task, and I have several work-arounds, but I am looking for an efficient way to go from PAS stained slides of lung tissue to defined ROI's over the whole slide (presumably via ...
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Can this image be the result of a Western Blot?

I am currently researching image manipulation in the life sciences and stumbled upon a Western Blot looking very similar to the image below. For creating the image I have cut out the blot using the ...
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Can stress echocardiography show coronary blood flow difference before and after exercise?

Stress echocardiography means a pair of cardiac ultrasound imaging examinations, before and after exercise. I assume that coronary blood flow is increased after exercise. Is cardiac ultrasound ...
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603 views

Software for counting fly eggs

Is there any software that could be used to rapidly (quicker than humans) count the eggs laid by Drosophila on a substrate by placing them under a microscope with a camera attached? The eggs are laid ...
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What would it take to recognize a deer by its photo?

I am trying to recognize a deer by its antlers or any other means. Elaborating: I was hoping to use their antlers to recognize them but I have heard that most deers shed their antlers every year so ...
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Do the antlers re-grow in the same pattern every year? [duplicate]

I am a software engineer and I am trying to develop a system to identify a deer by its photograph. Most deers lose their antlers every year. I would like to know if they re-grow in the same pattern ...
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108 views

Microscopy Book Suggestions

I've learned programming through great book recommendations; many from the Stack Exchange series of sites. I'm hoping to take this approach in order to gain a fundamental understanding of how ...
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Difference between Diffuse Optical Tomography and Optical Tomography

What are there the differences between these two modalities? Diffuse Optical Tomography (DOT) Optical Tomography (OT) Are there forms of OT that are not DOT?
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681 views

Cine-MRI versus MRI

Could someone explain the difference between Cine-MRI and MRI? I am reading conflicting things online, such as Cine-MRI uses ECG-gating, or that Cine-MRI takes many images of the same position of the ...
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Ultrasound during pregnancy

In a hospital I can see a long queue of pregnant women waiting for their turn for ultrasound. Is it safe to go through the ultrasound during pregnancy, especially during last few weeks? Is ...
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Can I image Coomassie and GFP in gels at the same time with a fluorescence scanner?

I'm working with a GFP-tagged protein and am routinely using a fluorescence imager (GE Typhoon) and a standard optical scanner to capture fluorescent and absorption images, respectively, of my SDS-...
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558 views

Automatic cropping of collimated digital X-ray images

Do you have any suggestions for a library which offers an algorithm to crop digital X-ray images automatically? We receive full-size images (43x43cm) from a detector, independent of the collimator ...