3D spin-lock imaging of human gliomas

…, UA Ramadan, TK Peltonen, AT Markkola… - Magnetic resonance …, 1999 - Elsevier
… In our study we used TR 125 ms that, at our institution at 0.1 T imager, is routinely used for T
… The z component of the magnetization at different points at the sequence is: (A1) M z,2 =M z,…

MR imaging features of acute mastoiditis and their clinical relevance

…, AA Aarnisalo, AT Markkola… - American Journal …, 2015 - Am Soc Neuroradiology
BACKGROUND AND PURPOSE: MR imaging is often used for detecting intracranial
complications of acute mastoiditis, whereas the intratemporal appearance of mastoiditis has been …

Spin lock and magnetization transfer imaging of head and neck tumors.

AT Markkola, HJ Aronen, T Paavonen, E Hopsu… - Radiology, 1996 - pubs.rsna.org
PURPOSE: To evaluate and compare the spin lock and magnetization transfer techniques
in the differentiation of benign and malignant head and neck tumors at magnetic resonance (…

Gd-DTPA as an alternative contrast agent in conventional and interventional radiology

T Vehmas, AT Markkola - Acta radiologica, 1998 - journals.sagepub.com
Purpose: Patients with contra-indications to iodine-based contrast media present problems
in radiological examination. In this study, we evaluated Gd-DTPA as an alternative contrast …

T1ρ dispersion imaging of head and neck tumors: a comparison to spin lock and magnetization transfer techniques

AT Markkola, HJ Aronen, T Paavonen… - Journal of Magnetic …, 1997 - Wiley Online Library
… processes that are effective at very low field strengths while … of macromolecules than T1
obtained at higher field strengths ( … considered to be approximately T1 at very low field strengths. …

Determination of T1ρ values for head and neck tissues at 0.1 T: a comparison to T1 and T2 relaxation times

AT Markkola, HJ Aronen, UA Ramadan… - Magnetic resonance …, 1998 - Elsevier
In order to optimize head and neck magnetic resonance (MR) imaging with the spin-lock (SL)
technique, the T 1 ρ relaxation times for normal tissues were determined. Furthermore, T 1 …

On-and off-resonance spin-lock MR imaging of normal human brain at 0.1 T: possibilities to modify image contrast

UA Ramadan, AT Markkola, J Halavaara… - Magnetic resonance …, 1998 - Elsevier
… This allows the study of tissue relaxation processes effective at low field strengths (in the
present work B1L ≤ 250 μT). At very low locking field strengths, T 1ρ is approximately T 2 .8, 11…

Multiple-slice spin lock imaging of head and neck tumors at 0.1 Tesla: exploring appropriate imaging parameters with reference to T2-weighted spin-echo technique

AT Markkola, HJ Aronen, S Lukkarinen… - Investigative …, 2001 - journals.lww.com
… -slice SL-GRE sequences for head and neck imaging at 0.1 T. We also showed that the
multiple-… was performed at low field strength, the suggested techniques may be used at high field …

Double‐blind evaluation of implants of gold wire at acupuncture points in the dog as a treatment for osteoarthritis induced by hip dysplasia

…, E Kuusela, E Saarto, A Markkola… - Veterinary …, 2001 - Wiley Online Library
… implants at acupuncture points around the hip joints. They were assigned at random into
two groups of 19. In the treated group, gold wire was inserted through hypodermic needles at

Diet selection of lesser white‐fronted geese Anser erythropus at a spring staging area

J Markkola, M Niemelä, S Rytkönen - Ecography, 2003 - Wiley Online Library
… an extensive coastal meadow, at least tens of hectares wide and >300 m broad. The LWfG
is, at least in Bothnian Bay staging areas, more shy than other geese (Markkola et al. 1998b). …