Normal Images
Female,
33 years of age, complaining of joints pain, was referred to assess lung involvement due to
fibromialgia and chronic allergia (urticaria). No smoking habit. Patient
underwent radioaerosol ventilation scintigraphy (A) with 20 mCi of 99mTc-DTPA
followed inmediately by a 20 min
acquisition of both lungs in posterior view (left hand side), which depicted
homogeneous uptake and some tracer deposit in thrachea and main brochi. At
processing region of interests were drawn in the two lungs getting the
corresponding time activity curves (right hand side, yellow arrows). Curves have
slow clearance of tracer, with calculated right and left T1/2 of 90 min and 118
min, respectively. These values are within reference limits (Normal Values).
Bone scan showed a small focus of increased uptake in the tip of sternum and
sacroiliac joints, with sacroiliac index slightly elevated of 1.5 in each
side, see
Normal Values (B).
References:
1 Massardo T.,González P. et al. Alveolo-capillary permeability (ACP) measurement with Tc 99m DTPA in asymptomatic population. Air pollution effect. Europ J Nucl Med. 1990; 16: S102 (Abstract).
2 Meneghetti C. Patología Pulmonar Inflamatoria e Infiltrativa. p: 587-591 in: Medicina Nuclear Aplicaciones Clínicas. Eds: I. Carrio - P. González. Editorial Masson, Barcelona España, 2003.