abstract：:To explore the potential role of MRI in detecting cardiac allograft rejection in transplant recipients using gadolinium tetraazacyclododecane tetraacetic acid (Gd-DOTA) for contrast enhancement, we examined 7 normal healthy volunteers and 39 patients separated into three groups according to histological findings. Quan...

journal_title：Journal of computer assisted tomography

authors： Mousseaux E,Farge D,Guillemain R,Bruneval P,Vulser C,Couétil JP,Carpentier A,Gaux JC

更新日期：1993-03-01 00:00:00

abstract：:Suprascapular neuropathy results from abnormal compression of the suprascapular nerve, typically at the suprascapular or spinoglenoid notch. This may be produced by either mass effect such as ganglion cyst or by certain repetitive shoulder motions producing wide scapular excursion (e.g., hyperabduction), which causes ...

journal_title：Journal of computer assisted tomography

authors： Zeiss J,Woldenberg LS,Saddemi SR,Ebraheim NA

更新日期：1993-03-01 00:00:00

abstract：:Spiral CT (SCT) differs from conventional CT in that the entire heart can be rapidly imaged in the axial plane following the peripheral infusion of small quantities of contrast material. As contrast material travels through coronary artery bypass graft segments, good image detail is achieved, allowing visualization of...

journal_title：Journal of computer assisted tomography

authors： Tello R,Costello P,Ecker C,Hartnell G

更新日期：1993-03-01 00:00:00

abstract：:Although tuberculosis is an uncommon cause of spinal arachnoiditis, it needs to be differentiated from other causes of arachnoiditis because it is a treatable disease. Myelography, which is the imaging modality of choice for the chronic adhesive stage of tuberculous arachnoiditis, usually reveals irregularity of the t...

journal_title：Journal of computer assisted tomography

authors： Kumar A,Montanera W,Willinsky R,TerBrugge KG,Aggarwal S

更新日期：1993-01-01 00:00:00

abstract：:Abdominal CT, which routinely includes the lower thorax, is an important adjunct to supine chest radiography in detecting chest injury in patients with blunt abdominal trauma. In 1,086 consecutive patients with blunt abdominal trauma, 223 of whom had both supine chest radiography and abdominal CT, 49 patients examined...

journal_title：Journal of computer assisted tomography

authors： Wolfman NT,Gilpin JW,Bechtold RE,Meredith JW,Ditesheim JA

更新日期：1993-01-01 00:00:00

abstract：:Implementation of an accurate, reliable index of cost effectiveness would help to advance technology assessment and reimbursement of MR imaging procedures, including gadolinium enhancement. To this end, an objective, consensual measure that satisfies the need for "gold-standard" confirmation of diagnostic impressions ...

journal_title：Journal of computer assisted tomography

authors： Wolf GL

更新日期：1993-01-01 00:00:00

abstract：:Four patients with intracranial glioependymal cysts were evaluated in our institution in the last 7 years. All underwent surgical drainage and biopsy of the cyst wall. Cranial CT revealed a uniformly hypodense lesion with no contrast enhancement in all cases. Magnetic resonance imaging studies revealed a well defined ...

journal_title：Journal of computer assisted tomography

authors： Ismail A,Tampieri D,Melanson D,Pokrupa R,Villemure JG,Bertrand G

更新日期：1992-11-01 00:00:00

abstract：:The objective of this study was to evaluate the potential utility of a nutritional support formula to serve as a practical means of enhancing the gastrointestinal tract on abdominal MR images. Nutritional support formula (Ensure Plus) was administered to 29 patients prior to abdominal MRI. Standard T1-weighted and T2-...

journal_title：Journal of computer assisted tomography

authors： Mirowitz SA,Susman N

更新日期：1992-11-01 00:00:00

abstract：:Diffuse neonatal hemangiomatosis (DNH) is a rare disorder that usually presents in infancy and has a high mortality rate. We report a long-term adult survivor of DNH who presented with multiple calcifications in the bowel wall, liver, spleen, and adrenal glands on CT. Diffuse neonatal hemangiomatosis needs to be added...

journal_title：Journal of computer assisted tomography

authors： Latifi HR,Siegel MJ

更新日期：1992-11-01 00:00:00

abstract：:Radiological findings in three cases of sigmoid colon carcinoma invading the urinary bladder are reported. An irregular spiculated margin or nodular indentations in region of bladder dome were seen on intravenous urography. A soft tissue mass contiguous with an irregularly thickened urinary bladder wall and a circumfe...

journal_title：Journal of computer assisted tomography

authors： Kim SH,Na DG,Choi BI,Han JK,Han MC

更新日期：1992-09-01 00:00:00

abstract：:Seventy selected cases were reviewed retrospectively to assess the normal Gd-DTPA enhanced MR appearance of the cervical anterior epidural venous plexus. This structure can enhance quite markedly and has a somewhat variable appearance on MR imaging but we believe that it can be differentiated from pathological enhance...

journal_title：Journal of computer assisted tomography

authors： Gelber ND,Ragland RL,Knorr JR

更新日期：1992-09-01 00:00:00

abstract：:MRI appearance of adult polyglucosan body disease is described. A 67-year-old man presenting with a chronic progressive degenerative neurologic disorder was found to have marked atrophy of the entire cord, without signal abnormalities on long TR images. Autopsy revealed atrophy of the cord, diffuse gliosis, and numero...

journal_title：Journal of computer assisted tomography

authors： Negishi C,Sze G

更新日期：1992-09-01 00:00:00

abstract：:Proton MR spectroscopy of the brain has been undertaken in 8 healthy volunteers and in 11 patients with human immunodeficiency virus infection and varying stages of AIDS dementia complex (ADC). Spectral appearances in patients with no ADC or early ADC were not significantly different from normal volunteers. Spectra fr...

journal_title：Journal of computer assisted tomography

authors： Menon DK,Ainsworth JG,Cox IJ,Coker RC,Sargentoni J,Coutts GA,Baudouin CJ,Kocsis AE,Harris JR

更新日期：1992-07-01 00:00:00

abstract：:The value of routinely used MR sequences in the detection of focal changes of femorotibial articular cartilage was studied. T1-weighted, proton density, and T2-weighted SE as well as gradient echo images were acquired in 20 cadaveric knees (56-88 years old, mean 73.8 years). Three hundred five coronal and sagittal (3 ...

journal_title：Journal of computer assisted tomography

authors： Hodler J,Berthiaume MJ,Schweitzer ME,Resnick D

更新日期：1992-07-01 00:00:00

abstract：:Calcifications of renal masses are common. They are usually dense, partial, small, punctate, and linear opacities. Diffuse calcification is an extremely rare feature of renal masses. Generally, calcified renal cell carcinomas are hypovascular, with calcifications in the interstitium, and they also contain fibrotic cap...

journal_title：Journal of computer assisted tomography

authors： Onitsuka H,Murakami J,Naito S,Souda R,Shioyama Y,Honda H,Araki A,Torii Y,Masuda K

更新日期：1992-07-01 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：:Seven cases of Poland syndrome were investigated with CT and/or MR to assess the extent of the muscle abnormalities of the shoulder girdle. In all cases the absence of the sternocostal head of the pectoralis major was clearly shown, as were any associated abnormalities of the pectoralis minor, serratus anterior, and l...

journal_title：Journal of computer assisted tomography

authors： Wright AR,Milner RH,Bainbridge LC,Wilsdon JB

更新日期：1992-05-01 00:00:00

abstract：:Renal cell carcinoma has a propensity to extend as tumor thrombus into the renal vein and inferior vena cava (IVC). The preoperative assessment for the presence and extent of renal vein and IVC tumor thrombus is important for planning appropriate surgical resection. Imaging procedures [CT, ultrasound (US), MR, venacav...

journal_title：Journal of computer assisted tomography

authors： Kallman DA,King BF,Hattery RR,Charboneau JW,Ehman RL,Guthman DA,Blute ML

更新日期：1992-03-01 00:00:00

abstract：:We present a hemorrhagic adrenal adenoma surrounding and encompassing adjacent retroperitoneal fat to simulate the appearance of a myelolipoma by CT. A well-defined fibrous capsule, punctate calcification, and several macroscopic foci of fat within the mass led to an erroneous preoperative diagnosis. Lesions displayin...

journal_title：Journal of computer assisted tomography

authors： Rhodes RE,Gaede JT,Meyer GA

更新日期：1992-03-01 00:00:00

abstract：:Early studies evaluating the utility of Gd-diethylenetriamine pentaacetic acid (DTPA) enhanced MR imaging for characterization of musculoskeletal masses have demonstrated inconsistent and often conflicting results. In this study a new method, dynamic Gd-DTPA enhanced rapid acquisition spin echo MR imaging, was impleme...

journal_title：Journal of computer assisted tomography

authors： Mirowitz SA,Totty WG,Lee JK

更新日期：1992-01-01 00:00:00

abstract：:Magnetization transfer (MT) between protons of macromolecules and protons of water molecules is a recently introduced mechanism for tissue contrast in MR imaging. The MT effect is strong in tissues where there is an efficient cross relaxation between macromolecular protons and water protons and where this interaction ...

journal_title：Journal of computer assisted tomography

authors： Tanttu JI,Sepponen RE,Lipton MJ,Kuusela T

更新日期：1992-01-01 00:00:00

abstract：:The transfer of magnetization between a free and a bound pool of spins is described in terms of the respective longitudinal relaxation times and the life times of spins in each pool. The effect of an off resonance radiofrequency (RF) pulse in producing saturation in the bound pool and a consequent decrease in both the...

journal_title：Journal of computer assisted tomography

authors： Hajnal JV,Baudouin CJ,Oatridge A,Young IR,Bydder GM

更新日期：1992-01-01 00:00:00

abstract：:The clinical and MR features of an alcoholic woman with Wernicke encephalopathy are reported. During the acute stage Gd-diethylenetriamine pentaacetic acid enhanced MR revealed damage of the blood-brain barrier bilaterally and symmetrically adjacent to the third ventricle, cerebral aqueduct, and fourth ventricle. The ...

journal_title：Journal of computer assisted tomography

authors： Schroth G,Wichmann W,Valavanis A

更新日期：1991-11-01 00:00:00

abstract：:We have previously shown that 5 mm axial T1-weighted images following Gd-diethylenetriamine pentaacetic acid (DTPA) administration were sufficient as a screening examination of the internal auditory canal (IAC) and cerebellopontine angle cistern in 80% of cases with sensorineural hearing loss. In the remaining 20% of ...

journal_title：Journal of computer assisted tomography

authors： Litt AW,Mirsky P,Berson BD,Kricheff II

更新日期：1991-11-01 00:00:00

abstract：:We studied four patients with adrenocorticotropic hormone (ACTH)-independent hypercortisolism due to bilateral massive enlargement of the adrenal glands. The combined weight of the adrenal glands ranged from 69 to 149 g and the adrenal cortex was replaced in three of four patients by multiple nodules ranging from micr...

journal_title：Journal of computer assisted tomography

authors： Doppman JL,Nieman LK,Travis WD,Miller DL,Cutler GB Jr,Chrousos GP,Norton JA

更新日期：1991-09-01 00:00:00

abstract：:Fast MR techniques and the application of water-soluble contrast agents allow the simultaneous examination of renal morphology and the functional aspects of glomerular filtration using bolus injections of Gd-DTPA. Spatial resolution is sufficient to resolve individual renal pyramids, but the quantitative examination o...

journal_title：Journal of computer assisted tomography

authors： von Schulthess GK,Kuoni W,Gerig G,Wüthrich R,Duewell S,Krestin G

更新日期：1991-09-01 00:00:00

abstract：:Two cases of necrotizing herpes simplex encephalitis (HSE) were investigated with 99mTc-hexamethylpropyleneamineoxime (HMPAO) SPECT and MR. The clinical course was compared with the neuroimaging results. In the acute stage, the increased HMPAO uptake matched the MR hyperintense signal in the limbic temporal lobe and i...

journal_title：Journal of computer assisted tomography

authors： Schmidbauer M,Podreka I,Wimberger D,Oder W,Koch G,Wenger S,Goldenberg G,Asenbaum S,Deecke L

更新日期：1991-09-01 00:00:00

abstract：:The utility of gadolinium-enhanced ultrafast MR imaging in the diagnosis of focal nodular hyperplasia (FNH) of the liver was assessed in one patient. Contrast-enhanced serial snapshot-FLASH with a frequency of 30 images/min demonstrated the typical hemodynamic appearance of FNH known from CT studies. ...

journal_title：Journal of computer assisted tomography

authors： Urhahn R,Klose KC,Drobnitzky M

更新日期：1991-09-01 00:00:00

abstract：:A new head holder for the fixation and repositioning of the patient head in PET, CT, and MR scanners has been designed and tested. With this device, a bidimensional correlation between functional and anatomical brain images can also be obtained. Head fixation and repositioning are achieved using the patient's dental m...

journal_title：Journal of computer assisted tomography

authors： Bettinardi V,Scardaoni R,Gilardi MC,Rizzo G,Perani D,Paulesu E,Striano G,Triulzi F,Fazio F

更新日期：1991-09-01 00:00:00

abstract：:We retrospectively evaluated 10 patients with pathologically proven fibrolamellar hepatocellular carcinoma (FLHCC) to assess the utility of CT (n = 9), ultrasound (n = 10), angiography (n = 9), and MR (n = 3). The tumors were solitary in 6 of 10 patients, well delineated in 7 of 10, and hypervascular in 8 of 10. With ...

journal_title：Journal of computer assisted tomography

authors： Soyer P,Roche A,Levesque M,Legmann P

更新日期：1991-07-01 00:00:00

abstract：:We conducted a prospective evaluation of the normal vermiform appendix in 203 patients. Conventional CT techniques were utilized with an 8 mm slice thickness and 10 mm slice interval. The normal appendix was definitely identified in 51% of the patients studied. Computed tomographic appearance of the normal appendix is...

journal_title：Journal of computer assisted tomography

authors： Grosskreutz S,Goff WB 2nd,Balsara Z,Burkhard TK

更新日期：1991-07-01 00:00:00

abstract：:Magnetic resonance imaging was evaluated in six patients with primary thyroid lymphoma. Five patients had a solitary localized tumor and one had multiple tumors. These masses showed homogeneous iso- or high intensity compared with the uninvolved thyroid tissue on T1-weighted images and homogeneous high intensity on T2...

journal_title：Journal of computer assisted tomography

authors： Shibata T,Noma S,Nakano Y,Konishi J

更新日期：1991-07-01 00:00:00

abstract：:A 45-year-old patient with focal intrahepatic extramedullary hematopoiesis is presented in which the liver was imaged by CT, ultrasound, and MR. The appearance of the lesions on MR consisted of slightly increased signal on T2-weighted images with heterogeneous enhancement of some of the lesions during bolus infusion o...

journal_title：Journal of computer assisted tomography

authors： Warshauer DM,Schiebler ML

更新日期：1991-07-01 00:00:00

abstract：:A case in which pus within a bladder diverticulum simulated a deep pelvic abscess is presented. This pitfall in CT diagnosis should be considered in patients with bladder outlet obstruction with symptoms of infection. ...

journal_title：Journal of computer assisted tomography

authors： Patel U,Furie DM,Lee WJ

更新日期：1991-05-01 00:00:00

abstract：:Magnetic resonance imaging was performed in four patients with biopsy proven idiopathic portal hypertension (IPH). The MR images show proximity of medium-sized intrahepatic vessels to each other and to the liver surface in all patients. Small vessels running parallel to the second order branches of the intrahepatic po...

journal_title：Journal of computer assisted tomography

authors： Arai K,Matsui O,Kadoya M,Yoshikawa J,Gabata T,Takashima T,Kobayashi K,Unoura M

更新日期：1991-05-01 00:00:00

abstract：:Abnormal hyperdensity consistent with skeletal muscle calcification was shown by CT in four of eight (50%) patients with rhabdomyolysis. This finding correlated significantly with antecedent hypocalcemia (p = 0.01) and renal insufficiency (p = 0.03). In patients with rhabdomyolysis, CT can show abnormal skeletal muscl...

journal_title：Journal of computer assisted tomography

authors： Russ PD,Dillingham M

更新日期：1991-05-01 00:00:00

abstract：:Vasculitis of the testis, although common pathologically, has been difficult to diagnose clinically and to detect noninvasively. This report describes the added benefit of MR imaging in directing clinical management in a patient where the first manifestation of vasculitis was scrotal pain and swelling. This subject wa...

journal_title：Journal of computer assisted tomography

authors： Hayward I,Trambert MA,Mattrey RF,Saltzstein SL,Demby AM

更新日期：1991-05-01 00:00:00

abstract：:To evaluate the ability of gradient echo MR to define the vacuum phenomena, 14 cadaveric lumbar spines were imaged by spin echo and gradient echo MR, CT, and plain radiography following injection of varying amounts of air into the intervertebral disks. Gradient echo MR was more sensitive than spin echo MR or plain rad...

journal_title：Journal of computer assisted tomography

authors： Berns DH,Ross JS,Kormos D,Modic MT

更新日期：1991-03-01 00:00:00

abstract：:Magnetic resonance is recognized as potentially the best imaging procedure for localization in stereotactic neurosurgery. However, special difficulties necessitate specific adaptation to localize targets in the stereotactic frame. We developed a new method for stereotactic localization. The MR studies were performed u...

journal_title：Journal of computer assisted tomography

authors： Rousseau J,Clarysse P,Blond S,Gibon D,Vasseur C,Marchandise X

更新日期：1991-03-01 00:00:00

abstract：:We describe a case of a ruptured gravid uterus, secondary to motor vehicle accident, in a 20-year-old woman. Maternal and fetal injuries associated with blunt trauma are described along with the use of CT in pregnant patients. ...

journal_title：Journal of computer assisted tomography

authors： Dash N,Lupetin AR

更新日期：1991-03-01 00:00:00