Maximum intensity projection
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At the time the article was created Bruno Di Muzio had no recorded disclosures.
View Bruno Di Muzio's current disclosuresAt the time the article was last revised Andrew Murphy had no financial relationships to ineligible companies to disclose.
View Andrew Murphy's current disclosures- MIP
- Maximum intensity projection (MIP)
- Sliding thin-slab maximum intensity projection (STS-MIP)
Maximum Intensity Projection (MIP) consists of projecting the voxel with the highest attenuation value on every view throughout the volume onto a 2D image 1.
Such an algorithm is rather simple: for each XY coordinate, only the pixel with the highest Hounsfield number along the Z-axis is represented so that in a single bidimensional image all dense structures in a given volume are observed. For example, it is possible to find all the hyperdense structures in a volume, independently of their position 2.
This method tends to display bone and contrast material-filled structures preferentially, and other lower-attenuation structures are not well visualized 2. The primary clinical application of MIP is to improve the detection of pulmonary nodules and assess their perfusion. MIP also helps characterize the distribution of small nodules. In addition, MIP sections of variable thickness are excellent for assessing the size and location of vessels, including the pulmonary arteries and veins 1.
History and etymology
The American radiologist, working in Stanford, California, Sandy Napel (fl. 2019) et al introduced sliding thin-slab maximum intensity projection (STS-MIP) as a new technique in 1993 3.
References
- 1. Cody DD. AAPM/RSNA physics tutorial for residents: topics in CT. Image processing in CT. Radiographics. 22 (5): 1255-68. Radiographics (full text) - Pubmed citation
- 2. Perandini S, Faccioli N, Zaccarella A et-al. The diagnostic contribution of CT volumetric rendering techniques in routine practice. Indian J Radiol Imaging. 2010;20 (2): 92-7. doi:10.4103/0971-3026.63043 - Free text at pubmed - Pubmed citation
- 3. Napel S, Rubin GD, Jeffrey RB. STS-MIP: a new reconstruction technique for CT of the chest. (1993) Journal of computer assisted tomography. 17 (5): 832-8. Pubmed
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