Knowledge Portal

otherspinediseases

scott (scott@undisclosed.example.com) — 2026-06-12T17:08:53+00:00

Other Spine Diseases More Than IVDD There is more to spine pathology than just IVDD! On this page, there will be case examples of non-IVDD pathology in the spine, and a list of any useful sequences. Discospondylitis Discospondylitis is an infection of the vertebral endplates and intervertebral disc, most commonly of bacterial origin. Some notable features are:

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scott (scott@undisclosed.example.com) — 2026-06-12T17:08:44+00:00

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scott (scott@undisclosed.example.com) — 2026-06-12T17:08:13+00:00

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scott (scott@undisclosed.example.com) — 2026-06-12T16:47:04+00:00

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scott (scott@undisclosed.example.com) — 2026-06-12T16:43:00+00:00

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scott (scott@undisclosed.example.com) — 2026-06-12T16:41:45+00:00

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scott (scott@undisclosed.example.com) — 2026-06-12T16:40:05+00:00

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scott (scott@undisclosed.example.com) — 2026-06-12T16:20:11+00:00

mri_brain

scott (scott@undisclosed.example.com) — 2026-06-12T15:32:55+00:00

Brain MRI Scan Coverage and Planning Sagittal Plane On the 3 dorsal and axial scout images, plane the slices parallel to the midline of the brain, along the sagittal sinus. On the sagittal scout image, center the FOV on the pituitary gland (noted by the X). resize the FOV to include the orbit to C1/2. Add enough slices to include both orbits.

shoulder_mri_guide

scott (scott@undisclosed.example.com) — 2026-06-12T15:31:31+00:00

Veterinary Shoulder MRI Guide By: Scott Johnson MS RT (R)(MR) The original file: Suggested Protocol courtesy of Dr. Layla Shaikh: * Sagittal PD FatSat * Dorsal T1 * Dorsal T2 * Axial PD * Axial T2 * Optional Contrast * Axial T1 *

echo_train_length

scott (scott@undisclosed.example.com) — 2026-06-12T15:23:59+00:00

Echo Train Length What is Echo Train Length Echo train length (ETL), also known as turbo factor, determines the number of additional refocused echoes to be acquired in a spin echo based sequence and is used to decrease scan time. Depending on the sequence, this number can be selected by the user (as in FSE) or is controlled indirectly (as in HASTE) through other parameters such as phase encoding steps. When selecting an echo train length, it is important to remember that the refocused echo is …

mri_physics

scott (scott@undisclosed.example.com) — 2026-06-12T15:15:05+00:00

MRI Physics MR Physics Home Page This page will be dedicated to providing more technical information relevant to scanning veterinary MRI. The topics and information will focus on concise in topis that are applicable to scanning, and not on foundational information. For foundational MR physics information, there are some great online resources:

time_to_echo

scott (scott@undisclosed.example.com) — 2026-06-12T15:11:35+00:00

Time to Echo (TE) What is TE? TE, meaning Time to Echo, is a user selectable parameter which determines when the MR signal should be sampled. Across different pulse sequences, TE selections can vary greatly, but generally determine how much dephasing is allowed to occur with the transverse magnetization ie the amount of T2 decay of signal.

time_to_repeat - [TR in Fast Gradient Echo]

scott (scott@undisclosed.example.com) — 2026-06-12T14:59:07+00:00

Time to Repeat (TR) What is TR? Time to Repeat (TR) is the time between successive excitation pulses in the same slice. It is a user selectable parameter that primarily controls the amount of longitudinal relaxation allowed to occur within a pulse sequence. Appropriate TR's depend on the particular pulse sequence and contrast, so each will be addressed separately below.

bandwidth

scott (scott@undisclosed.example.com) — 2026-06-12T14:57:48+00:00

Receiver Bandwidth What is Receiver Bandwidth? Receiver bandwidth, often shortened to just 'bandwidth' and not to be confused with transmit bandwidth, is a selectable parameter that controls the range of frequencies to be sampled for an MR image. Bandwidth is inseparable from two other parameters: Field of View (FOV) and Frequency Matrix. Indirectly, the bandwidth has implications in a number of things: chemical shift artifact, image contrast, geometric distortion, echo spacing,

spine_deep_dive

scott (scott@undisclosed.example.com) — 2026-06-11T05:53:06+00:00

Spine MRI Applications What is this page? This page is dedicated to more technical information regarding spine imaging, to include anatomy, MRI technique, and more of the 'why' of spine MRI. This page will follow the format of a question and answer dialogue for each topic. See

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scott (scott@undisclosed.example.com) — 2026-06-11T05:47:34+00:00

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scott (scott@undisclosed.example.com) — 2026-06-11T05:47:15+00:00

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scott (scott@undisclosed.example.com) — 2026-06-11T04:59:42+00:00

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scott (scott@undisclosed.example.com) — 2026-06-11T04:59:25+00:00