Rapid laser Doppler blood flow imaging

  • We can't recommend Moor instruments highly enough. The technology is at the cutting edge and the support second to none.

    Paul Sumners, PhD
    London South Bank University

  • I cannot rate the company or the staff highly enough.

    Jim House, PhD
    University of Portsmouth

  • In a nutshell, moorFLPI-2 is the most user-friendly system for studying cerebral blood flow regulation in rodents.

    Chia-Yi (Alex) Kuan, MD, PhD
    Emory University School of Medicine

  • Moor Instruments have consistently provided excellent help and support for my research.

    Kim Gooding, PhD
    University of Exeter Medical School

  • We have found Moor equipment to be extremely dependable and innovative.

    Dean L. Kellogg, Jr., MD, Ph.D
    University of Texas Health Science Center

  • It goes without saying that the company's imaging technology itself is superb!

    Gourav Banerjee
    Leeds Beckett University

  • I expect to be using Moor Instrument’s technology for many years to come!

    Faisel Khan, PhD
    Ninewells Hospital & Medical School

  • Laser Doppler Imager is a standard accurate method we now use in our cerebral blood flow and brain perfusion in our laboratory.

    Momoh A. Yakubu, PhD
    Texas Southern University

The moorLDLS2 line scanning system provides laser Doppler images of blood flow in the microvasculature with scan times as low as 4 seconds. The system employs a multi channel laser Doppler line to sweep across the tissue gathering data from 64 points simultaneously. The penetration properties of the laser line are comparable to the moorLDI2-IR systems but the image acquisition times are much shorter.

The rapid scanning makes this system ideally suited for any application where the dynamic changes are too rapid to be captured by conventional laser Doppler imaging; where work volume is such that time/cost savings can be attained by using fast line scanning; and where it is necessary in a clinical/operative environment to minimise the scan time.

A full range of accessories are available for clinical and research environments.

As with all our products quality and reliability is assured with our standard two year manufacturers warranty.

The following products are AVAILABLE TO BUY ONLINE and work with the moorLDLS2

This section lists the more common questions our customers have with regards to the moorLDLS2. If you have a question you would like answered that does not appear below then please email us. We are happy to help!

Q. What is the penetration depth of moorLDLS2?
A. The penetration will depend to some extent on the optical properties of the tissue sampled. The measurement depth is equivalent to conventional single beam imagers so will include components from the superficial, nutritive layers as well as some influence from deeper and larger vessels.

Q. What is the largest area you can image with moorLDLS2?
A. The image area is dependent on the scan area selected as well as the distance from the scan head to the tissue. This allows the study of areas up to 20cm x 15cm.

Q. How often should the moorLDLS2 be calibrated?
A. The moorLDLS2 is factory calibrated. A user calibration kit is provided to enable checking of calibration and recalibration if necessary. It is good practice to check this routinely throughout an extended research period.

Q. How can I assess dynamic responses with moorLDLS2?
A. The moorLDLS2 is used in the same way as a conventional laser Doppler imager - changes from a baseline are commonly assessed. Measurement modes include single image (to assess variations within the same image), repeat image (to assess changes over extended periods) and continuous 64 channel single point assessments.

There are numerous references where our laser Doppler imagers are cited. The list below is a small selection. Please contact us for reference lists on your chosen subject.

Mistrík E, Dusilová Sulková S, Bláha V, Kalousová M, Knízek J, Moucka P, Herout V, Kadlec M, Stilec R, Sobotka L.
Plasma albumin levels correlate with decreased microcirculation and the development of skin defects in hemodialyzed patients.
Nutrition. 2010 Sep;26(9):880-5.

Murray AK, Moore TL, Manning JB, Taylor C, Griffiths CE, Herrick AL.
Noninvasive imaging techniques in the assessment of scleroderma spectrum disorders.
Arthritis Rheum. 2009 Aug 15;61(8):1103-11

Bal SM, Caussin J, Pavel S, Bouwstra JA.
In vivo assessment of safety of microneedle arrays in human skin.
Eur J Pharm Sci. 2008 Oct 2;35(3):193-202.

Moor Instruments are committed to product development. We reserve the right to change the specifications below without notice.

Measurement Principle

Laser Doppler Line Scanning (Rapid Scan technique).

Laser Safety Classification

Class 3R. Protective eyewear supplied.


Factory Calibrated using temperature controlled motility standard. Simple user calibration check software and hardware provided

Number of Measurement Channels

64 – i.e. 64 pixels sampled simultaneously.

Best Image Resolution

256 x 64 pixels.

Typical Scan Time

64 x 64 pixels – 4 seconds.

Maximum Scan Area

20cm x 15cm – Scan time 13 seconds at Maximum Resolution.

Acquisition Modes

Single Point (1 to 64 channels), Single Image, Repeat Image, Line Image.


Based on Moor Instruments moorLDI software – refined over 15 years according to customer demands.

Stand Options

Desktop stand and Clinical Mobile stand with medical grade isolation transformer.

PC Connections

1 x USB and 1 x Firewire (IEEE1394) port. Suit Laptop/ Desktop or Panel PC (no special cards required).


2 years, parts & labour, enhanced service contracts available.

Weights/ Dimensions

Scan head: (approx) 19cm x 30cm x 18(max)cm, Scan head: 3.2kg.