Downloaded from www.ajronline.org by 1.34.37.99 on 10/20/15 from IP address 1.34.37.99. Copyright ARRS. For personal use only; all rights reserved
989
Case Report
Demonstration of Blood Supply by MR Angiography Anthony
to Pulmonary
J. Doyle1
tion in the steady state in 3-mm contiguous axial slices with a TA of 50 msec, TE of 10 msec, and flip angle of 60#{176}. A license plate coil was positioned over the thoracolumbar junction. The machine used was a Signa 1 .5-T superconducting magnet (General Electric Medical Systems, Milwaukee, WI). Each image was acquired as a single breath-hold on full inspiration. The patient was required to hold his breath for about 1 1 sec per scan. Twenty-five images were obtained. The collapsed maximum-intensity-projection view clearly shows an
The imaging of pulmonary sequestration has traditionally focused on the use of arteriography to identify abnormal systemic vessels feeding the abnormal portion of lung. More recently, by MR
would
several imaging
cases have
also seem
of pulmonary sequestration been reported [1]. MR
well suited
diagnosed angiography
for displaying
the abnormal
vascubature in this condition in a way that could provide a diagnosis and aid in surgical planning without the need for arteriography. The ability of MR angiography to image vessels
in three dimensions partial-volume
should eliminate
averaging
and
report
supplying
a case
caused
of vessels
abnormal
the
sequestration
systemic
blood
by that
mined
sweats,
man had a 3-month
(Fig.
history of recurrent
that responded
1 A). A previous
had yielded inflammatory tration
to antibiotics
episodes
demonstration
sequence, MR
percutaneous
cells. The diagnosis
biopsy
of this
of pulmonary
we performed angiography
two-dimensional with spoiled
area
seques-
time-of-flight
single
gradient-recalled
acquisi-
Received September 18, 1991 ; accepted after revision November 1 Department of Radiology, University of Utah Schcol of Medicine, AJR 158:989-990,
side
of the
descending
thoracic
to the
individual
axial
slices
and
analysis
of the
sequestration
was found
with
a feeding
shown on the MR angiogram.
May
1992 036i-803X/92/i
585-0989
© American
surgeon
sequestration systemic
rests
artery
on the
supplying
a
needs
to
know
where
to look
for
the
abnormal
vessels [1 2]. As in other areas of the body, MR angiography definitely should have an application in the noninvasive demonstration of abnormal blood vessels of this nature. Because the vast majority of sequestrations (both intralobar and extra,
i, 199i. 50 N. Medical Roentgen
of pulmonary of an aberrant
portion of lung. Documenting the existence and origin of this systemic blood supply is also helpful for treatment planning because the generally accepted treatment is surgery, and the
We performed MR angiography in an attempt to establish the diagnosis. After initially localizing the area with a coronal Ti -weighted MR
left
angiogram.
an intralobar
The diagnosis
of
but relapsed
was considered.
breath-hold
the
Discussion and cough
left lung
from
vessel in exactly the position
when these were stopped. A series of CT scans made elsewhere showed a persistent area of opacity in the posterior basal segment of the
MR
At surgery,
with this
Case Report A 35-year-old
by reference
reconstructed
technique.
fever,
arising
the abnormal area of lung (Fig. 1 B). The reconstructed MR angiogram also clearly shows this vessel arising from the left of the aorta and passing superolaterally (Fig. 1 C). The site of origin of the vessels just above the left hemidiaphragm was deter-
vessels
were imaged
vessel
aorta and entering
sequences are being obtained MR or CT imaging technique.
in which
a pulmonary
the problems
nonvisualization
are not in the plane of whatever with a standard cross-sectional We
Sequestration
Dr., Salt Lake City.
Ray Society
UT 84i32.
Address
reprint
requests
to A. J. Doyle.
DOYLE
Downloaded from www.ajronline.org by 1.34.37.99 on 10/20/15 from IP address 1.34.37.99. Copyright ARRS. For personal use only; all rights reserved
990
s1
May i992
:-
989
Case Report
Demonstration of Blood Supply by MR Angiography Anthony
to Pulmonary
J. Doyle1
tion in the steady state in 3-mm contiguous axial slices with a TA of 50 msec, TE of 10 msec, and flip angle of 60#{176}. A license plate coil was positioned over the thoracolumbar junction. The machine used was a Signa 1 .5-T superconducting magnet (General Electric Medical Systems, Milwaukee, WI). Each image was acquired as a single breath-hold on full inspiration. The patient was required to hold his breath for about 1 1 sec per scan. Twenty-five images were obtained. The collapsed maximum-intensity-projection view clearly shows an
The imaging of pulmonary sequestration has traditionally focused on the use of arteriography to identify abnormal systemic vessels feeding the abnormal portion of lung. More recently, by MR
would
several imaging
cases have
also seem
of pulmonary sequestration been reported [1]. MR
well suited
diagnosed angiography
for displaying
the abnormal
vascubature in this condition in a way that could provide a diagnosis and aid in surgical planning without the need for arteriography. The ability of MR angiography to image vessels
in three dimensions partial-volume
should eliminate
averaging
and
report
supplying
a case
caused
of vessels
abnormal
the
sequestration
systemic
blood
by that
mined
sweats,
man had a 3-month
(Fig.
history of recurrent
that responded
1 A). A previous
had yielded inflammatory tration
to antibiotics
episodes
demonstration
sequence, MR
percutaneous
cells. The diagnosis
biopsy
of this
of pulmonary
we performed angiography
two-dimensional with spoiled
area
seques-
time-of-flight
single
gradient-recalled
acquisi-
Received September 18, 1991 ; accepted after revision November 1 Department of Radiology, University of Utah Schcol of Medicine, AJR 158:989-990,
side
of the
descending
thoracic
to the
individual
axial
slices
and
analysis
of the
sequestration
was found
with
a feeding
shown on the MR angiogram.
May
1992 036i-803X/92/i
585-0989
© American
surgeon
sequestration systemic
rests
artery
on the
supplying
a
needs
to
know
where
to look
for
the
abnormal
vessels [1 2]. As in other areas of the body, MR angiography definitely should have an application in the noninvasive demonstration of abnormal blood vessels of this nature. Because the vast majority of sequestrations (both intralobar and extra,
i, 199i. 50 N. Medical Roentgen
of pulmonary of an aberrant
portion of lung. Documenting the existence and origin of this systemic blood supply is also helpful for treatment planning because the generally accepted treatment is surgery, and the
We performed MR angiography in an attempt to establish the diagnosis. After initially localizing the area with a coronal Ti -weighted MR
left
angiogram.
an intralobar
The diagnosis
of
but relapsed
was considered.
breath-hold
the
Discussion and cough
left lung
from
vessel in exactly the position
when these were stopped. A series of CT scans made elsewhere showed a persistent area of opacity in the posterior basal segment of the
MR
At surgery,
with this
Case Report A 35-year-old
by reference
reconstructed
technique.
fever,
arising
the abnormal area of lung (Fig. 1 B). The reconstructed MR angiogram also clearly shows this vessel arising from the left of the aorta and passing superolaterally (Fig. 1 C). The site of origin of the vessels just above the left hemidiaphragm was deter-
vessels
were imaged
vessel
aorta and entering
sequences are being obtained MR or CT imaging technique.
in which
a pulmonary
the problems
nonvisualization
are not in the plane of whatever with a standard cross-sectional We
Sequestration
Dr., Salt Lake City.
Ray Society
UT 84i32.
Address
reprint
requests
to A. J. Doyle.
DOYLE
Downloaded from www.ajronline.org by 1.34.37.99 on 10/20/15 from IP address 1.34.37.99. Copyright ARRS. For personal use only; all rights reserved
990
s1
May i992
:-
