A computerized system for the elastic matching of deformed radiographic images to idealized atlas images.

abstract：PURPOSE:To retrospectively investigate the effect of the section thickness used for quantifying dual-energy perfusion computed tomography (DEpCT) during 2- and 3-dimensional evaluation. METHODS:Sixty-six patients (22 males and 44 females; mean age, 59.3 years) suspected of having an acute pulmonary embolism underwent ...

journal_title：Journal of computer assisted tomography

authors： Nomura T,Okada M,Nakashima Y,Yonezawa T,Kudomi S,Kido S,Matsunaga N

更新日期：2014-11-01 00:00:00

abstract：:In vivo attenuation values of 19 fluid collections in 17 patients were compared with in vitro values obtained on examination of the aspirated fluids within the calibration phantom of an EMI CT5005 body scanner. While the in vitro values showed a 5.2 Hounsfield unit (HU:1,000 scale). difference between cysts and absces...

journal_title：Journal of computer assisted tomography

authors： Bydder GM,Kreel L

更新日期：1980-04-01 00:00:00

abstract：OBJECTIVE:The objective of this study was to compare image quality for abdominal computed tomographic (CT) images acquired at 200 and 50 mA s and reconstructed with image-based iterative reconstruction. MATERIALS AND METHODS:In this institutional review board-approved prospective study, 22 patients (mean [SD] age, 64....

journal_title：Journal of computer assisted tomography

authors： Pourjabbar S,Singh S,Singh AK,Johnston RP,Shenoy-Bhangle AS,Do S,Padole A,Blake MA,Persson A,Kalra MK

更新日期：2014-01-01 00:00:00

abstract：:The purpose of this 4-part series is to demonstrate the high-resolution axial and coronal anatomy of temporal bone from a flat-panel detector-based volume computed tomography (CT) scanner (parts I and II); these imaging planes are then used to outline the effect of different surgical procedures commonly applied to the...

journal_title：Journal of computer assisted tomography

authors： Bartling SH,Shukla V,Becker H,Brady TJ,Hayman A,Gupta R

更新日期：2005-07-01 00:00:00

abstract：:The clinical records and radiologic findings in six patients with spontaneous (nontraumatic) intrahepatic and subcapsular hemorrhage were reviewed. Four patients had underlying liver lesions (hepatocellular carcinoma and metastasis from B-cell lymphoma in one patient each and hepatic adenoma in two other patients). On...

journal_title：Journal of computer assisted tomography

authors： Merine D,Fishman EK,Zerhouni EA

更新日期：1988-05-01 00:00:00

abstract：:Ten children, ranging in age from 3 weeks to 11 years, with a history of primary cardiac tumors were studied by two-dimensional echocardiography and by ECG triggered magnetic resonance (MR) imaging (six of them had rhabdomyomas). Eighteen of 31 tumors with intracavitary extension diagnosed by echocardiography were det...

journal_title：Journal of computer assisted tomography

authors： Rienmüller R,Lloret JL,Tiling R,Groh J,Manert W,Müller KD,Seifert K

更新日期：1989-07-01 00:00:00

abstract：:Two cases demonstrating the computed tomographic appearance of azygos continuation of the inferior vena cava (IVC) are presented. One is associated with a retroaortic left renal vein and the other with a duplicated IVC. An enlarged azygos vein should not be confused with retrocrural lymphadenopathy or a mediastinal ma...

journal_title：Journal of computer assisted tomography

authors： Breckenridge JW,Kinlaw WB

更新日期：1980-06-01 00:00:00

abstract：:A splenic mass was found in an asymptomatic 76-year-old woman who had been treated with steroids for autoimmune hepatitis. The lesion was found to be hyperechoic on ultrasound examination, hypovascular on angiography, low attenuating on postcontrast computed tomography, isointense to splenic parenchyma on precontrast ...

journal_title：Journal of computer assisted tomography

authors： Abo D,Terae S,Fukasawa Y,Seki H,Hasegawa Y,Sakuhara Y,Shimizu T,Shirato H

更新日期：2008-11-01 00:00:00

abstract：:This is the fourth in a series of articles on the spine. The first reviewed the anatomy of the neck; the second reviewed the upper thoracic spine and chest (T1-T4); and the third reviewed the middle thoracic spine and chest (T5-T8). The procedures performed in the lower thoracic spine include percutaneous biopsies of ...

journal_title：Journal of computer assisted tomography

authors： Miller JS,Chiou-Tan F,Zhang H,Taber KH

更新日期：2007-01-01 00:00:00

abstract：:We describe the effect of the off-center position, the bowtie filter type, and the direction of scan projection radiograph on the radiation dose and image noise of 64-detector computed tomographic scans using the automatic tube current modulation technique. On anteroposterior scan projection radiographs, the tube curr...

journal_title：Journal of computer assisted tomography

authors： Funama Y,Taguchi K,Awai K,Sakabe D,Shimamura M,Yamashita Y

更新日期：2009-11-01 00:00:00

abstract：OBJECTIVE:The water component dominates in in vivo proton (1H) spectroscopy. This consists of a prominent central peak with large "wings," and consequently metabolites that lie on the "wings" become difficult to quantitate. A method has been developed to deconvolve the water component in in vivo 1H spectroscopy, hence ...

journal_title：Journal of computer assisted tomography

authors： Saeed N

更新日期：1995-09-01 00:00:00

abstract：:The CT appearance of hemiazygos continuation of a left-sided inferior vena cava is presented along with discussion of associated anomalies. ...

journal_title：Journal of computer assisted tomography

authors： Munechika H,Cohan RH,Baker ME,Cooper CJ,Dunnick NR

更新日期：1988-03-01 00:00:00

abstract：:Elevation of the anterior part of the right diaphragm results in the spurious radiological appearance of a mass at the right lung base. Standard chest views are usually sufficient to show the true nature of the "mass." Occasionally, however, a true mass lesion cannot be entirely excluded, and further studies are then ...

journal_title：Journal of computer assisted tomography

authors： Rubinstein ZJ,Solomon A

更新日期：1981-10-01 00:00:00

abstract：:We report a case of agenesis of dorsal pancreas diagnosed by CT. This anomaly can easily be confused with pancreas divisum on endoscopic retrograde cholangiopancreatography alone. ...

journal_title：Journal of computer assisted tomography

authors： Shah KK,DeRidder PH,Schwab RE,Alexander TJ

更新日期：1987-01-01 00:00:00

abstract：:We present three cases of glioblastoma with CSF dissemination that contrast-enhanced fluid-attenuated inversion recovery MRI was sensitive enough to detect compared with contrast-enhanced T1-weighted MRI. An autopsy was performed on one patient, and its histologic findings proved the existence of CSF dissemination. ...

journal_title：Journal of computer assisted tomography

authors： Misaki K,Nakada M,Hayashi Y,Tachibana O,Yamashita J,Ueda F,Suzuki M

更新日期：2001-11-01 00:00:00

abstract：OBJECTIVE:Silent magnetic resonance angiography (MRA) was compared with time-of-flight (TOF)-MRA in imaging of arteriovenous malformations (AVMs) of the brain. METHODS:Thirty-five consecutive patients with AVMs of the brain were included. Quantitative analyses were performed by measuring both signal-to-noise ratio and...

journal_title：Journal of computer assisted tomography

authors： Tomura N,Saginoya T,Kokubun M,Horiuchi K,Watanabe Z

更新日期：2019-11-01 00:00:00

abstract：OBJECTIVE:To compare the 2-dimensional time of flight, the 3-dimensional time-resolved contrast-enhanced magnetic resonance (MR) angiography, and the 3-dimensional 3-station bolus chase contrast-enhanced MR angiography in assessing distal station atherosclerosis. METHODS:Two-dimensional time of flight, 3-dimensional t...

journal_title：Journal of computer assisted tomography

authors： Hahn WY,Hecht EM,Friedman B,Babb JS,Jacobowitz GR,Lee VS

更新日期：2007-01-01 00:00:00

abstract：OBJECTIVE:This study aimed to evaluate the interobserver variability of right-to-left ventricular (RV/LV) diameter ratios on computed tomographic pulmonary angiographies at reduced tube potential. METHODS:Consecutive computed tomographic pulmonary angiographies performed at 80 kVp for subjects weighing less than 80 kg...

journal_title：Journal of computer assisted tomography

authors： George E,Hunsaker AR,Rybicki FJ,Kumamaru KK

更新日期：2013-09-01 00:00:00

abstract：:Perinatal insults, including anoxia, may lead to a form of cerebral necrosis designated multicystic encephalomalacia. This common condition is characterized by (a) moderate atrophic ventricular dilatation, (b) intact ventricular walls with thickened subependymal glial layer, (c) multiple cysts of irregular size and sh...

journal_title：Journal of computer assisted tomography

authors： Naidich TP,Chakera TM

更新日期：1984-08-01 00:00:00

abstract：:Vertebral artery tortuosity and loop formation are rare causes of cervical radiculopathy. The criterion standard for the detection of vertebral artery loop formation is digital subtraction angiography. Computed tomography (CT) and magnetic resonance imaging provide good accuracy in the evaluation of vertebral arteries...

journal_title：Journal of computer assisted tomography

authors： Ganiyusufoglu K,Kantarci M,Sirvanci M,Sildiroglu O,Alparslan L

更新日期：2005-01-01 00:00:00

abstract：:High-resolution CT (HRCT) and chest radiographs were compared in nine patients with miliary lung disease. In all cases, miliary disease was documented to be infectious in etiology; six of these patients proved to be human immunodeficiency virus (HIV) positive. A mixture of both sharply and poorly defined 1-3 mm nodule...

journal_title：Journal of computer assisted tomography

authors： McGuinness G,Naidich DP,Jagirdar J,Leitman B,McCauley DI

更新日期：1992-05-01 00:00:00

abstract：:We obtained diffusion-weighted echo planar images of the human cervical cord in vivo and correlated them with histopathologic findings. Images were obtained in 17 healthy volunteers using a 1.5 T clinical MR unit. When motion-probing gradients were added perpendicular to the long axis of the cord, the white matter was...

journal_title：Journal of computer assisted tomography

authors： Nagayoshi K,Kimura S,Ochi M,Hayashi K,Okimoto T,Wakebe T,Saiki K

更新日期：2000-05-01 00:00:00

abstract：:Masses arising in the adrenal gland may be simulated on computed tomography (CT) by a number of anatomical structures and variations, and by certain pathological conditions in adjacent organs. These adrenal pseudotumors include the following: fluid-filled gastric fundus, prominent splenic lobulations, upper pole renal...

journal_title：Journal of computer assisted tomography

authors： Berliner L,Bosniak MA,Megibow A

更新日期：1982-04-01 00:00:00

abstract：:Pseudodynamic MR imaging of the temporomandibular joints (TMJs) has been used for the evaluation of the functional aspects of the TMJs. To evaluate the value of T1-weighted spin-echo (SE) and gradient-echo (GE) techniques, both techniques were performed in 9 asymptomatic (mean 25.7 years, 22-23 years), and 25 symptoma...

journal_title：Journal of computer assisted tomography

authors： Masui T,Isoda H,Mochizuki T,Ushimi T,Takahashi M,Kaneko M,Shirakawa T

更新日期：1996-05-01 00:00:00

abstract：:An enterogenous cyst of the craniocervical region producing anterior medullary compression is reported. The patient presented with quadriparesis with greater involvement of the upper limbs. Computed tomography showed a high attenuation intradural extramedullary mass located anteriorly. Magnetic resonance imaging demon...

journal_title：Journal of computer assisted tomography

authors： Kak VK,Gupta RK,Sharma BS,Banerjee AK

更新日期：1990-05-01 00:00:00

abstract：OBJECTIVE:This study aimed to determine optimal strength of sinogram-affirmed iterative reconstruction (SAFIRE) and to evaluate image quality (IQ) of low-dose chest computed tomography (LDCT) using SAFIRE compared with iterative reconstruction in image space (IRIS) and filtered back projection (FBP). METHODS:Thirty pa...

journal_title：Journal of computer assisted tomography

authors： Hwang HJ,Seo JB,Lee HJ,Lee SM,Kim EY,Oh SY,Kim JE

更新日期：2013-07-01 00:00:00

abstract：:Osteoid osteoma is a benign osteoblastic tumor usually diagnosed by conventional radiography. Computed tomography can be used preoperatively to localize the nidus and avoid unnecessary or misdirected resection. In this report CT appearance of the nidus in osteoid osteoma versus sequestration in osteomyelitis is presen...

journal_title：Journal of computer assisted tomography

authors： Mahboubi S

更新日期：1986-05-01 00:00:00

abstract：OBJECTIVE:The aim of this study was to investigate the use of one magnetic resonance image-processing tool, FSL, in its ability to perform automated segmentation of computed tomographic images of the brain. METHODS:Head computed tomography (CT) images were brain extracted and segmented using the FSL tools BET and FAST...

journal_title：Journal of computer assisted tomography

authors： Cauley KA,Och J,Yorks PJ,Fielden SW

更新日期：2018-01-01 00:00:00

abstract：OBJECTIVE:The impact of injection flow rates, mono- or biphasic injection mode, and scan delay on liver and portal vein enhancement with helical CT was evaluated. MATERIALS AND METHODS:The liver of 75 consecutive patients was examined with helical CT before and after injection of 100 ml iopromide (30 g of iodine). Pat...

journal_title：Journal of computer assisted tomography

authors： Kopka L,Funke M,Vosshenrich R,Hagemann A,Oestmann JW,Grabbe E

更新日期：1995-05-01 00:00:00

abstract：:The direct spread of intraabdominal disease via peritoneal folds is clearly demonstrated with computed tomography (CT). This extensive network of peritoneal folds can be conceptualized as the subperitoneal space. These subperitoneal communications within the abdomen are described and demonstrated by CT scans and a sch...

journal_title：Journal of computer assisted tomography

authors： Oliphant M,Berne AS

更新日期：1982-12-01 00:00:00