Volume 71, Issue 2 pp. 267-277
Original Article

Seven-tesla magnetic resonance images of the substantia nigra in Parkinson disease

Dae-Hyuk Kwon MS

Dae-Hyuk Kwon MS

Neuroscience Research Institute, Gachon University of Medicine and Science, Incheon

Search for more papers by this author
Jong-Min Kim MD, PhD

Jong-Min Kim MD, PhD

Department of Neurology, Seoul National University College of Medicine, Seoul National University Hospital and Bundang Hospital, Seoul

Search for more papers by this author
Se-Hong Oh PhD

Se-Hong Oh PhD

Neuroscience Research Institute, Gachon University of Medicine and Science, Incheon

Search for more papers by this author
Hye-Jin Jeong MS

Hye-Jin Jeong MS

Neuroscience Research Institute, Gachon University of Medicine and Science, Incheon

Search for more papers by this author
Sung-Yeon Park MS

Sung-Yeon Park MS

Neuroscience Research Institute, Gachon University of Medicine and Science, Incheon

Search for more papers by this author
Eung-Seok Oh MD

Eung-Seok Oh MD

Department of Neurology, Seoul National University College of Medicine, Seoul National University Hospital and Bundang Hospital, Seoul

Search for more papers by this author
Je-Geun Chi MD, PhD

Je-Geun Chi MD, PhD

Neuroscience Research Institute, Gachon University of Medicine and Science, Incheon

Department of Pathology, Seoul National University College of Medicine, Seoul, South Korea

Search for more papers by this author
Young-Bo Kim MD, PhD

Young-Bo Kim MD, PhD

Neuroscience Research Institute, Gachon University of Medicine and Science, Incheon

Search for more papers by this author
Beom S. Jeon MD, PhD

Beom S. Jeon MD, PhD

Department of Neurology, Seoul National University College of Medicine, Seoul National University Hospital and Bundang Hospital, Seoul

Search for more papers by this author
Zang-Hee Cho PhD

Corresponding Author

Zang-Hee Cho PhD

Neuroscience Research Institute, Gachon University of Medicine and Science, Incheon

Neuroscience Research Institute, Gachon University of Medicine and Science, 1198 Kuwol-dong, Namdong-gu, Incheon 405-760, South KoreaSearch for more papers by this author
First published: 17 August 2011
Citations: 171

Abstract

Objective:

To investigate anatomical changes in the substantia nigra (SN) of Parkinson disease (PD) patients with age-matched controls by using ultra-high field magnetic resonance imaging (MRI).

Methods:

We performed 7T MRI in 10 PD and 10 age-matched control subjects. Magnetic resonance images of the SN were obtained from a 3-dimensional (3D) T2*-weighted gradient echo sequence. Region of interest-based 3D shape analysis was performed to quantitatively compare images from the 2 groups.

Results:

The boundary between the SN and crus cerebri was not smooth in PD subjects. Undulation in the lateral surface of the SN appeared more intense in the side contralateral to that with the more severe symptoms, and more prominent at the rostral level of the SN than at the intermediate or caudal levels. In addition to the lateral surface, there was a striking difference in the dorsomedial aspects of the SN between PD and control subjects. In control subjects, a brighter signal region was observed along the dorsomedial surface of the lateral portion of SN, whereas in PD subjects, this region was observed as a dark region containing a hypointense signal in T2*-weighted images. The measurement of SN volumes, normalized to the intracranial volumes, showed higher values in PD subjects than in control subjects.

Interpretation:

This study demonstrates that 3D 7T MRI can definitively visualize anatomical alterations occurring in the SN of PD subjects. Further pathological studies are required to elucidate the nature of these anatomical alterations. Ann Neurol 2012;71:267–277

The full text of this article hosted at iucr.org is unavailable due to technical difficulties.

click me