HOME HELP FEEDBACK SUBSCRIPTIONS ARCHIVE SEARCH TABLE OF CONTENTS		QUICK SEARCH:   [advanced] Author: Keyword(s): Year:  Vol:  Page:

This Article Full Text (PDF) An erratum has been published Alert me when this article is cited Alert me if a correction is posted Services Email this article to a friend Similar articles in this journal Similar articles in PubMed Alert me to new issues of the journal Download to citation manager Citing Articles Citing Articles via Google Scholar Google Scholar Articles by Bahk, Y.-W. Articles by Kim, J.-H. Search for Related Content PubMed PubMed Citation Articles by Bahk, Y.-W. Articles by Kim, J.-H.

Dual-Head Pinhole Bone Scintigraphy

Samsung Cheil Hospital, Samsung Medical Center, Seoul; Catholic University Medical College Hospitals, Seoul and Uijongbu, Korea

Correspondence: For correspondence or reprints contact: Yong-Whee Bahk, MD, Department of Radiology, Samsung Cheil Hospital, Samsung Medical Center, 1-23 Mookjong-dong, Jung-ku, Seoul 100-380, Korea.

ABSTRACT

This article describes dual-head pinhole bone scintigraphy (DHPBS), which makes use of two opposing pinhole-collimated detectors to obtain one pair of magnified images of bone and joint at one time. The aims are to reduce scan time and solve the problem of the blind zone that is created in the background in single-head pinhole bone scintigraphy. Methods: DHPBS was used for normal hip and knee joints and one case each of lumbar spondylosis, vertebral compression fracture and pyoankle. The gamma camera used was a digital dual-head SPECT camera (Sopha Camera DST; Sopha Medical Vision International, Bue Cedex, France) connected to an XT data processor and a printer. Each of two opposing detectors was collimated with either a 3- or 5-mm pinhole collimator. The scan was performed 2–3 hr postinjection of 12–25 mCi ^99mTc-oxidronate. Some 1500–2000 Kilocounts were accumulated at 15–40 min per pair. Anterior and posterior views were taken for the spine and hip and medial and lateral views for the knee and ankle. DHPBS images were correlated to radiographs. Results: DHPBS produced a pair of high-resolution bone and joint images at one time, reducing scan time by nearly half for each image. The paired DHPBS images clearly visualized both foreground and back ground objects, which effectively eliminated the blind zone. Conclusion: DHPBS can significantly improve efficiency and diagnostic acumen.

Key Words: dual pinhole scan • pinhole scan • bone imaging